Do You Know Chromium?
With electron configuration [Ar] 3d54s1, atomic number 24, and symbol Cr, chromium is a high-melting-point metal which is lustrous, steely-grey, brittle, and hard. Take this quiz to find out more.
- 1.
It is the first element in...
- A.
Group 3
- B.
Group 4
- C.
Group 5
- D.
Group 6
Correct Answer
D. Group 6Explanation
The correct answer is Group 6 because it is stated that "It is the first element in..." and Group 6 is the first group mentioned in the list.Rate this question:
-
- 2.
Chromium was discovered as an element after it came to the attention of the Western world in the red crystalline mineral crocoite (lead(II) chromate), discovered in...
- A.
1760
- B.
1761
- C.
1762
- D.
1763
Correct Answer
B. 1761Explanation
Chromium was discovered as an element after it came to the attention of the Western world in the red crystalline mineral crocoite (lead(II) chromate), discovered in 1761.Rate this question:
-
- 3.
Chromium minerals as pigments came to the attention of the West in the...
- A.
18th century
- B.
19th century
- C.
20th century
- D.
21st century
Correct Answer
A. 18th centuryExplanation
Chromium minerals as pigments came to the attention of the West in the 18th century. This suggests that prior to the 18th century, the use of chromium minerals as pigments was not known or widely used in Western countries. The discovery and recognition of the pigments in the 18th century would have likely led to their subsequent use and popularity in various industries such as art and manufacturing.Rate this question:
-
- 4.
Chromium is ranked ____ of the most abundant elements in Earth's crust with an average concentration of 100 ppm.
- A.
20th
- B.
21th
- C.
22nd
- D.
23rd
Correct Answer
C. 22ndExplanation
Chromium is ranked 22nd among the most abundant elements in Earth's crust with an average concentration of 100 ppm.Rate this question:
-
- 5.
Chromium was discovered in...
- A.
1796
- B.
1797
- C.
1798
- D.
1799
Correct Answer
B. 1797Explanation
Chromium was discovered in 1797. This is the correct answer because it is the only option provided that matches the year of discovery.Rate this question:
-
- 6.
Its density is...
- A.
7.19 g cm-3
- B.
7.18 g cm-3
- C.
7.29 g cm-3
- D.
7.019 g cm-3
Correct Answer
A. 7.19 g cm-3Explanation
The correct answer is 7.19 g cm-3. This implies that the density of the substance being referred to is 7.19 grams per cubic centimeter.Rate this question:
-
- 7.
What type of chemical elements is chromium?
- A.
An alkali metal
- B.
A transition metal
- C.
An alkali earth metal
- D.
None of the above
Correct Answer
B. A transition metalExplanation
Chromium is classified as a transition metal. Transition metals are elements that have partially filled d or f orbitals in their electron configuration. They are known for their ability to form multiple oxidation states and their characteristic metallic properties. Chromium exhibits these properties and is commonly used in various industrial applications, such as in the production of stainless steel and other alloys.Rate this question:
-
- 8.
What are its oxidation states?
- A.
+2, +3 and +6
- B.
+2, +4 and +6
- C.
+2, +4 and +5
- D.
+2, +3 and +6
Correct Answer
A. +2, +3 and +6Explanation
The oxidation states of an element refer to the charge that it carries when it forms a compound or ion. In this case, the element in question has oxidation states of +2, +3, and +6. This means that it can lose 2, 3, or 6 electrons to form compounds or ions with different charges.Rate this question:
-
- 9.
It has how many neutrons?
- A.
25
- B.
26
- C.
27
- D.
28
Correct Answer
D. 28Explanation
The correct answer is 28. The question is asking for the number of neutrons an atom has. Neutrons are subatomic particles with no charge, found in the nucleus of an atom. To determine the number of neutrons, you subtract the atomic number (which represents the number of protons) from the atomic mass. In this case, since the question does not provide any additional information, we assume the given numbers are atomic masses. Therefore, the atom in question has 28 neutrons.Rate this question:
-
- 10.
About how many percentage of the chromium that is commercially produced is used to make alloys, such as stainless steel?
- A.
73-83%
- B.
74-84%
- C.
75-85%
- D.
76-86%
Correct Answer
C. 75-85%Explanation
Approximately 75-85% of the chromium that is commercially produced is used to make alloys, such as stainless steel. This indicates that a significant majority of the chromium production is dedicated to alloy production, highlighting the importance of chromium in the manufacturing of stainless steel and other alloys.Rate this question:
-
Quiz Review Timeline +
Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
-
Current Version
-
Mar 21, 2023Quiz Edited by
ProProfs Editorial Team -
Mar 11, 2018Quiz Created by
Cripstwick
Back to top