2nd Year Chemistry MCQs F.Sc. Part 2
Chapter No.4
Group 5A and 6A Elements
Total MCQs = 47
6. Oxidation of NO in air produces: (RWP, SGD 2015) (GRW 2019)
A. N2O
B. N2O3
C. N2O5
D. N2O4
Answer:
D. N2O4
7. Nitric acid can be transported in a container made up of : (LHR 2016)
A. Al
B. Zn
C. Cu
D. None of these
Answer:
A. Al
8. The brown gas formed, when metal reduces HNO3 to (SWL, DGK 2017 GII) (RWP 2018)
A. NO
B. NO2
C. N2O3
D. N2O5
Answer:
B. NO2
9. Gold dissolves in aqua regia to form: (BWP 2014) (FSD 2015)
A. AuCl3
B. NaH2BO3
C. Na2B4O7
D. Na3BO3
Answer:
A. AuCl3
10. Bone ash contains (DGK 2009)
A. 80° P
B. 80 ° Ca3(PO4)2
C. 90 ° P
D. 90 ° P Ca3(PO4)2
Answer:
B. 80 ° Ca3(PO4)2
