Remidi Semester Ganjil -- Kimia X IPA 1 & X IPA 2

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  • 1/32 Pertanyaan

    Zat-zat berikut ini yang termasuk campuran heterogen adalah ….  

    • Campuran air dan gula
    • Campuran air dan sirup
    • Campuran air dan pasir
    • Campuran air dan garam
    • Campuran air dan minuman teh
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Remidi Semester Ganjil -- Kimia X IPA 1 & X IPA 2 - Quiz

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  • 2. 

    Contoh peranan ilmu kimia dalam bidang pertanian adalah…. 

    • Penemuan sel surya untuk menghasilkan energi

    • Penemuan vaksin untuk penyakit menular

    • Penemuan jenis obat tertentu untuk melawan penyakit

    • Penemuan mikroprosesor yang digunakan dalam peralatan elektronik

    • Penemuan pupuk sintetis yang dapat meningkatkan hasil pertanian

    Correct Answer
    A. Penemuan pupuk sintetis yang dapat meningkatkan hasil pertanian
    Explanation
    The correct answer is the discovery of synthetic fertilizers that can increase agricultural yields. This is because the use of synthetic fertilizers in agriculture has greatly improved crop productivity by providing essential nutrients to plants. Synthetic fertilizers are formulated with specific ratios of nitrogen, phosphorus, and potassium, which are essential for plant growth. They can be easily applied to the soil and absorbed by plants, leading to increased crop yields. This discovery has played a crucial role in modern agriculture, ensuring food security and meeting the growing demand for food.

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  • 3. 

    Zat-zat berikut ini yang termasuk campuran homogen adalah …. 

    • Campuran pasir dan kerikil

    • Campuran air dan gula

    • Campuran gula dan garam

    • Campuran air dan minyak goreng

    • Campuran tepung kanji dan air

    Correct Answer
    A. Campuran air dan gula
    Explanation
    A homogeneous mixture is a mixture where the components are evenly distributed throughout the mixture and cannot be visibly distinguished. In the given options, only the mixture of water and sugar fits this description. When sugar is dissolved in water, it forms a homogeneous mixture where the sugar molecules are evenly distributed throughout the water molecules. The other options, such as the mixture of sand and gravel, sugar and salt, water and cooking oil, and cornstarch and water, do not form homogeneous mixtures as their components can be visibly distinguished.

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  • 4. 

    Gabungan atom-atom yang sejenis disebut …..

    • Molekul unsure

    • Molekul senyawa

    • Molekul atom

    • Senyawa

    • Campuran

    Correct Answer
    A. Molekul unsure
    Explanation
    The correct answer is "Molekul unsure". This is because the question is asking for the term used to describe a combination of similar atoms. The term "molekul unsure" refers to a molecule composed of the same type of atoms.

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  • 5. 

    Sinar katode merupakan partikel yang bermuatan negatif. Fakta yang mendukung hal tersebut adalah…. 

    • Massa elektron sangat kecil dan bergerak lurus

    • Dibelokkan oleh medan listrik menuju kutub negative

    • Dibelokkan oleh medan listrik menuju kutub positif

    • Sifatnya tidak tergantung pada jenis katode yg digunakan

    • Merupakan hasil pancaran dari sinar katode

    Correct Answer
    A. Dibelokkan oleh medan listrik menuju kutub positif
    Explanation
    The correct answer is "Dibelokkan oleh medan listrik menuju kutub positif". This is supported by the fact that sinar katode, which refers to cathode rays, are negatively charged particles. When placed in an electric field, negatively charged particles will be deflected towards the positive pole. Therefore, sinar katode will be deflected towards the positive pole in an electric field.

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  • 6. 

    Pasangan atom berikut yang mempunyai jumlah elektron valensi sama adalah…  

    • 7N dan 14Si

    • 10Ne dan 19K

    • 6C dan 15P

    • 13Al dan 20Ca

    • 8O dan 16S

    Correct Answer
    A. 8O dan 16S
    Explanation
    The pair of atoms 8O and 16S have the same number of valence electrons. Oxygen (O) has 6 valence electrons and sulfur (S) has 6 valence electrons as well. Both atoms belong to Group 16 of the periodic table, which means they have the same number of valence electrons. Therefore, they have the same number of electrons in their outermost energy level.

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  • 7. 

    Unsur berikut yang mempunyai elektron valensi terkecil adalah ....

    • 7P

    • 9Q

    • 10R

    • 11S

    • 18T

    Correct Answer
    A. 11S
    Explanation
    The element with the smallest number of valence electrons is 11S. The atomic number of sulfur (S) is 16, which means it has 16 electrons. The valence electrons are the electrons in the outermost energy level, and sulfur has 6 valence electrons. Therefore, among the given options, 11S has the smallest number of valence electrons.

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  • 8. 
    Berbagai model atom sebagai berikut :Gambar 2 merupakan model atom yang dikemukakan oleh...    - ProProfs

    Berbagai model atom sebagai berikut :Gambar 2 merupakan model atom yang dikemukakan oleh...   

    • J. J. Thomson

    • Niles Bohr

    • John Dalton

    • Rutherford

    • Schrodinger

    Correct Answer
    A. J. J. Thomson
    Explanation
    The correct answer is J. J. Thomson. J. J. Thomson proposed the plum pudding model of the atom, which suggested that atoms were made up of a positively charged "pudding" with negatively charged electrons embedded within it. This model was later disproven by Rutherford's gold foil experiment, but it was an important step in the development of atomic theory.

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  • 9. 

    Ion X2+ mempunyai 10 elektron dan 9 neutron.  Nomor atom unsur X adalah . . . . 

    • 2

    • 6

    • 8

    • 10

    • 12

    Correct Answer
    A. 12
    Explanation
    Since the ion X2+ has a charge of +2, it means that it has lost 2 electrons. Therefore, if it originally had 10 electrons, it now has 8 electrons. The number of electrons in an atom is equal to its atomic number. So, the atomic number of element X is 8.

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  • 10. 

    Diketahui nomor atom unsur X = 16 dan nomor massa 33.  Maka dalam ion X2– terdapat . . . . 

    • 16 proton, 14 elektron dan 17 neutron

    • 16 proton, 16 elektron dan 15 neutron

    • 16 proton, 18 elektron dan 16 neutron

    • 16 proton, 18 elektron dan 17 neutron

    • 14 proton, 16 elektron dan 17 neutron

    Correct Answer
    A. 16 proton, 18 elektron dan 17 neutron
    Explanation
    The atomic number of an element represents the number of protons in its nucleus. Since the atomic number of element X is 16, it means there are 16 protons in its nucleus. The number of electrons in a neutral atom is equal to the number of protons, so there are 16 electrons in element X. The mass number of an element represents the total number of protons and neutrons in its nucleus. Since the mass number of element X is 33, and we know there are 16 protons, then the number of neutrons can be calculated by subtracting the number of protons from the mass number. Therefore, in the X2- ion, there are 16 protons, 18 electrons, and 17 neutrons.

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  • 11. 

    Sebuah atom terdiri dari 3 proton, 3 elektron dan 2 neutron.  Notasi yang benar untuk atom tersebut adalah . . . . .A, 2X3            C.  2X4                     E. 3X5B.  3X2            D.  2X5

    • A

    • B

    • C

    • D

    • E

    Correct Answer
    A. E
  • 12. 

    Jumlah maksimum elektron yang dapat menempati kulit O  adalah . . . .          

    • 8

    • 10

    • 16

    • 32

    • 50

    Correct Answer
    A. 50
  • 13. 

    Partikel penyusun inti atom adalah . . .

    • Proton

    • Neutron

    • Proton dan neutron

    • Proton, elektron, dan neutron

    • Neutron dan elektron

    Correct Answer
    A. Proton dan neutron
    Explanation
    The correct answer is "proton dan neutron". Protons and neutrons are the particles that make up the nucleus of an atom. Protons have a positive charge, while neutrons have no charge. Both protons and neutrons have a mass of approximately 1 atomic mass unit. Electrons, on the other hand, are negatively charged particles that orbit around the nucleus of an atom. However, they have a much smaller mass compared to protons and neutrons and are not part of the nucleus.

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  • 14. 

    Perhatikan Tabel berikut ini :AtomJumlah protonJumlah elektronJumlah neutronK777L788M888N889Pasangan yang merupakan isotop adalah atom-aatom....

    • K dan N

    • K dan M

    • L dan M

    • L dan N

    • M dan N

    Correct Answer
    A. M dan N
    Explanation
    The atoms M and N are isotopes because they have the same number of protons and electrons, but a different number of neutrons. Isotopes are atoms of the same element that have different numbers of neutrons. In this case, atoms M and N have the same number of protons and electrons, but a different number of neutrons, making them isotopes of each other.

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  • 15. 

    Atom merupakan bagian terkecil dari suatu benda yang tidak dapat dibagi lagi. Pendapat tersebut berasal dari.... 

    • John Dalton

    • JJ. Thomson

    • Neils Bohr

    • Ernest Rutherford

    • Max Plank

    Correct Answer
    A. John Dalton
    Explanation
    John Dalton is credited with developing the atomic theory, which states that atoms are the smallest indivisible particles of matter. This theory laid the foundation for our understanding of atoms and their properties. Therefore, the statement that atoms are the smallest units of matter that cannot be divided further can be attributed to John Dalton.

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  • 16. 

    Besarnya muatan elektron pertama kali diselidiki oleh Milikan melalui percobaan.....

    • Tetes minyak

    • Hamburan sinar alfa

    • Sinar katode

    • Sinar kanal

    • Sinar X

    Correct Answer
    A. Tetes minyak
    Explanation
    The correct answer is "Tetes minyak". This is because Milikan investigated the charge of the electron through the oil drop experiment. In this experiment, he observed the motion of oil droplets in an electric field, allowing him to determine the charge of individual electrons.

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  • 17. 

    Elektron ditemukan oleh....

    • J.J. Thomson

    • Henry Becquerel

    • R.A. Milikan

    • E. Rutherford

    • J. Chadwick

    Correct Answer
    A. J.J. Thomson
    Explanation
    J.J. Thomson is the correct answer because he discovered the electron. He conducted experiments with cathode rays and observed that they were composed of negatively charged particles, which he called electrons. This discovery revolutionized the understanding of atomic structure and laid the foundation for the development of modern physics.

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  • 18. 

    Kegagalan teori Rutherford diperoleh fakta bahwa sebagian besar sinar alfa yang dihamburkan pada lempeng tipis emas diteruskan. Berdasarkan fakta tersebut dapat disimpulkan bahwa.....

    • Sebagian besar atom merupakan ruang hampa

    • Atom mudah ditembus oleh sinar alfa yang dihamburkan kepadanya

    • Di dalam inti atom terdapat partikel yang bermuatan positif

    • Atom mempunyai inti positif yang sangat kecil

    • Jarak antara elektron dan inti atom sangat jauh

    Correct Answer
    A. Sebagian besar atom merupakan ruang hampa
    Explanation
    Based on the fact that most of the alpha particles are able to pass through the thin gold foil, it can be concluded that most of the atom is empty space. This suggests that the majority of the atom's volume is not occupied by any particles, indicating that most of the atom is empty or devoid of matter.

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  • 19. 

    Elektron terakhir unsur X dengan nomor atom 47 berada pada bilangan kuantum...

    • N=4,l=2,m=+2,s=+1/2

    • N=5,l=0,m=0 ,s=+1/2

    • N=5,l=0,m=0 ,s=-1/2

    • N=4,l=2,m=-2,s=+1/2

    • N=4,l=2,m=+2,s=-1/2

    Correct Answer
    A. N=4,l=2,m=+2,s=-1/2
    Explanation
    The answer n=4,l=2,m=+2,s=-1/2 is correct because it represents the electron configuration of the last electron in element X with atomic number 47. The values of n, l, m, and s represent the principal quantum number, azimuthal quantum number, magnetic quantum number, and spin quantum number respectively. In this case, the electron is in the 4th energy level (n=4), in the d orbital (l=2), with a magnetic quantum number of +2 (m=+2), and a spin quantum number of -1/2 (s=-1/2). This configuration follows the rules and principles of quantum mechanics and is consistent with the properties of element X.

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  • 20. 

    Unsur X yang mempunyai proton 33 dan netron 42 terletak pada golongan dan perioda...

    • VA dan 4

    • VIA dan 4

    • VB dan 4

    • IVA dan 5

    • VB dan 5

    Correct Answer
    A. VA dan 4
    Explanation
    The element with 33 protons and 42 neutrons is located in Group VA and Period 4.

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  • 21. 

    Suatu unsur dalam sistem periodik terletak pada golongan IIA periode 5, maka jumlah elektron yang dimiliki atom tersebut adalah...

    • 16

    • 22

    • 26

    • 34

    • 38

    Correct Answer
    A. 38
    Explanation
    The element in question is located in group IIA and period 5 of the periodic table. Group IIA elements have 2 valence electrons, and since the element is in period 5, it will have 5 energy levels. To find the total number of electrons, we add the number of valence electrons (2) to the product of the period number (5) and the maximum number of electrons per energy level (8). Therefore, the total number of electrons is 2 + (5 x 8) = 2 + 40 = 42. Since the question asks for the number of electrons, the correct answer is 38.

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  • 22. 

    Jika nomor atom Mn = 25, konfigurasi elektron yang benar untuk ion Mn4+ adalah…..A. [Ar]4s2 3d5             C. [Ar]4s1 3d2        E. [Ar]4s0 3d3B. [Ar]4s2 3d4             D. [Ar]3d7

    • A

    • B

    • C

    • D

    • E

    Correct Answer
    A. E
    Explanation
    The correct answer is E. The electron configuration for the Mn4+ ion is [Ar]4s0 3d3. This is because the Mn atom has 25 electrons, and when it loses 4 electrons to become Mn4+, it will have 21 electrons remaining. The electron configuration for Mn is [Ar]4s2 3d5, so when 4 electrons are removed, the 4s orbital becomes empty and the 3d orbital loses 3 electrons, resulting in the configuration [Ar]4s0 3d3.

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  • 23. 

    Diketahui keempat bilangan kuantum elektron terakhir unsurr X adalah  n=3; l=1, m=0, s= - ½. Nomor atom unsur tersebut adalah……

    • 17

    • 19

    • 22

    • 29

    • 35

    Correct Answer
    A. 17
    Explanation
    The given quantum numbers for the last electron of element X are n=3, l=1, m=0, and s=-1/2. The quantum number n represents the principal energy level, l represents the azimuthal or orbital angular momentum, m represents the magnetic quantum number, and s represents the spin quantum number. The combination of these quantum numbers corresponds to the electron configuration of a chlorine atom, which has an atomic number of 17. Therefore, the correct answer is 17.

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  • 24. 

    Salah satu kelompok triade Dobereiner yaitu Li, Na, K. Tentukan massa atom Na, jika diketahui massa atom Li = 7, dan K = 39……

    • 7

    • 23

    • 32

    • 39

    • 46

    Correct Answer
    A. 23
    Explanation
    The correct answer is 23. This is because the question states that Li, Na, and K are part of the Dobereiner triad. In this triad, the atomic masses of the elements are related to each other. The atomic mass of Li is given as 7, and K is given as 39. Since Na is part of the triad, its atomic mass must be the average of Li and K. Therefore, the atomic mass of Na is (7 + 39) / 2 = 23.

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  • 25. 

    Sistem periodik Mendeleev disusun berdasarkan . . . .                  

    • Konfigurasi elektron

    • Massa atom relatif dan kemiripan sifat

    • Kesamaan sifat

    • Nomor atom dan kemiripan sifat

    • Massa atom relative

    Correct Answer
    A. Massa atom relatif dan kemiripan sifat
    Explanation
    The periodic table of elements, known as the Sistem Periodik Mendeleev, is arranged based on the relative atomic mass and similarities in properties of the elements. Mendeleev noticed that when the elements were arranged in order of increasing atomic mass, there was a periodic repetition of their properties. This led to the development of the periodic table, where elements with similar properties are grouped together in columns called groups. Therefore, the correct answer is "massa atom relatif dan kemiripan sifat" which means relative atomic mass and similarities in properties.

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  • 26. 

    Kelompok unsur berikut yng merupakan unsur segolongan adalah . . . .                      

    • Be, Mg, dan K

    • He, Ar dan Kr

    • Li, Sr, dan K

    • F, Cl, dan Ba

    • Be, C, dan N

    Correct Answer
    A. He, Ar dan Kr
    Explanation
    The elements He (helium), Ar (argon), and Kr (krypton) belong to the same group in the periodic table, which is Group 18 or the noble gases. These elements have similar chemical properties, including being odorless, colorless, and non-reactive. Therefore, they can be classified as elements of the same group or segolongan.

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  • 27. 

    Di antara unsur berikut yang tergolong logam alkali tanah adalah . . . . 

    • Oksigen

    • Natrium

    • Bromin

    • Argon

    • Berilium

    Correct Answer
    A. Berilium
    Explanation
    Berilium adalah unsur yang tergolong logam alkali tanah. Logam alkali tanah terletak di golongan 2 dalam tabel periodik dan memiliki sifat kimia yang mirip, termasuk kecenderungan untuk membentuk ion bervalensi +2. Berilium adalah satu-satunya unsur dalam pilihan yang termasuk dalam golongan ini, sehingga merupakan jawaban yang benar.

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  • 28. 
    Atom kalium  mempunyai proton, neutron dan elektron  berturut-turut…. - ProProfs

    Atom kalium  mempunyai proton, neutron dan elektron  berturut-turut….

    • 19,19,19

    • 20,19,20

    • 20,19,39

    • 19,20,19

    • 19,39,20

    Correct Answer
    A. 19,20,19
    Explanation
    The correct answer is 19,20,19. This is because the atomic number of an element is equal to the number of protons in its nucleus. Since the element is potassium (symbol K) and its atomic number is 19, it means that it has 19 protons. The atomic mass of an element is the sum of the number of protons and neutrons in its nucleus. Since the atomic mass of potassium is approximately 39, and it has 19 protons, it means that it has 20 neutrons. Finally, the number of electrons in a neutral atom is equal to the number of protons, so potassium has 19 electrons.

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  • 29. 

    Unsur-unsur yang terletak pada golongan yang sama mempunyai….

    • Elektron valensi sama

    • Jumlah kulit yang sama

    • Jari-jari yang sama

    • Sifat fisis yang sama

    • titik didih yang sama

    Correct Answer
    A. Elektron valensi sama
    Explanation
    Unsur-unsur yang terletak pada golongan yang sama memiliki elektron valensi yang sama. Hal ini karena unsur-unsur dalam satu golongan memiliki konfigurasi elektron yang serupa pada kulit terluar, yang disebut sebagai elektron valensi. Elektron valensi berperan dalam menentukan sifat kimia unsur, seperti reaktivitas dan kemampuan membentuk ikatan kimia. Oleh karena itu, unsur-unsur dalam satu golongan memiliki sifat kimia yang serupa karena memiliki jumlah elektron valensi yang sama.

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  • 30. 
    Dari pasangan unsur berikut…..Yang merupakan Isobar adalah…. - ProProfs

    Dari pasangan unsur berikut…..Yang merupakan Isobar adalah….

    • 1 dan 2

    • 1 dan 3

    • 3 dan 4

    • 4 dan 5

    • 2 dan 3

    Correct Answer
    A. 1 dan 2
    Explanation
    Isobars are atoms or ions that have the same number of nucleons (total number of protons and neutrons) but different atomic numbers (number of protons). In this question, the correct answer is 1 and 2 because they are the only pair of elements that have the same number of nucleons (both have 3 nucleons) but different atomic numbers (1 and 2). The other pairs of elements have either different numbers of nucleons or the same atomic number.

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  • 31. 

    Sistem periodik modern disusun berdasarkan ….

    • Sifat fisika unsur

    • Kenaikan nomor atom

    • Kenaikan nomor massa

    • Kenaikan jumlah netron

    • Sifat kelogaman unsur

    Correct Answer
    A. Kenaikan nomor atom
    Explanation
    The modern periodic table is arranged based on the increasing atomic number of elements. Atomic number represents the number of protons in an atom's nucleus, which determines the element's identity. As the atomic number increases, the elements are arranged in a way that their properties gradually change and exhibit periodic patterns. This arrangement allows for easy classification and prediction of the properties of elements based on their position in the periodic table.

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  • 32. 

    Manakah satu pernyataan berikut yang tidak benar .... 

    • Elektron ditemukan oleh J.J Thomson melalui percobaan dengan tabung sinar katoda

    • Neutron ditemukan oleh J.Chadwick pada tahun 1932

    • Inti atom ditemukan oleh E.Ruthherford melalui percobaan penghamburan sinar

    • Proton ditemukan oleh Henry Becquerel pada tahun 1986

    • Muatan elektron ditemukan oleh A.R Milikan melalui percobaan tetes minyak

    Correct Answer
    A. Proton ditemukan oleh Henry Becquerel pada tahun 1986
    Explanation
    The statement "Proton ditemukan oleh Henry Becquerel pada tahun 1986" is incorrect. Protons were actually discovered by Ernest Rutherford in the early 20th century, not by Henry Becquerel in 1986. Becquerel is known for his discovery of radioactivity, but he did not discover the proton.

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
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  • Dec 11, 2014
    Quiz Created by
    Tiksmandametro

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