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Punjab 12th Class Chemistry Chapter 4 Group V-A and Group VI-A Elements MCQs Test Online

Total Question
20 Questions
Total Marks
40 Marks
Total Time
20 Minuts
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Test Name



Ch. 4 # Group V-A and Group VI-A Elements

Subject



Chemistry (12th Class)

Test Type



MCQs


Punjab 12th Class Chemistry Chapter 4 Group V-A and Group VI-A Elements MCQs Test Online

Punjab 12th Class Chemistry Chapter 4 Group V-A and Group VI-A Elements MCQs Test Online

 

Question 1 of 20

Chemistry

1. Which of the following is a reddish brown gas:
1.
2.
3.
4.

Question 1 of 20

Question 2 of 20

2. NO2 is called
1.
2.
3.
4.

Question 2 of 20

Question 3 of 20

3. The compound N20 causes disease:
1.
2.
3.
4.

Question 3 of 20

Question 4 of 20

4. Which of the following specie has the maximum number of unpaired electrons
1.
2.
3.
4.

Question 4 of 20

Question 5 of 20

5. In comparison with oxygen gas. a strong triple bond is present between two nitrogen atoms in a molecule and therefore nitrogen gas is:
1.
2.
3.
4.

Question 5 of 20

Question 6 of 20

6. SO3 is not absorbed in water directly to from H2SO4 because
1.
2.
3.
4.

Question 6 of 20

Question 7 of 20

7. The brown gas formed, when metal reduces HNO3 to
1.
2.
3.
4.

Question 7 of 20

Question 8 of 20

8. Laughing gas is chemically
1.
2.
3.
4.

Question 8 of 20

Question 9 of 20

9. Gold dissolves in aqua regain to form.
1.
2.
3.
4.

Question 9 of 20

Question 10 of 20

10. Free nitrogen and oxygen are present in atmosphere but they do not react with each other under normal conditions because
1.
2.
3.
4.

Question 10 of 20

Question 11 of 20

11. The lowest ionization energy is possessed by:
1.
2.
3.
4.

Question 11 of 20

Question 12 of 20

12. Oxidation of NO in air produces
1.
2.
3.
4.

Question 12 of 20

Question 13 of 20

13. Out of all the elements of group VA, the highest ionization energy is possessed by
1.
2.
3.
4.

Question 13 of 20

Question 14 of 20

14. Laughing gas is:
1.
2.
3.
4.

Question 14 of 20

Question 15 of 20

15. Out of all the elements of group VIA, the highest melting and boiling points is shown by the elements
1.
2.
3.
4.

Question 15 of 20

Question 16 of 20

16. Chemical formula of laughing gas is
1.
2.
3.
4.

Question 16 of 20

Question 17 of 20

17. The most electronegative element in group-VA is
1.
2.
3.
4.

Question 17 of 20

Question 18 of 20

18. Among group VA elements, the most electronegative element is
1.
2.
3.
4.

Question 18 of 20

Question 19 of 20

19. Which of the following gas is evolved when cooper reacts with dil HNO3?
1.
2.
3.
4.

Question 19 of 20

Question 20 of 20

20. Which catalyst is used in contact process
1.
2.
3.
4.

Question 20 of 20


 

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