2nd Year Chemistry MCQs F.Sc. Part 2
Chapter No.4
Group 5A and 6A Elements
Total MCQs = 47
41. In silicon dioxide, each silicon atom is tetrahedrally bonded to four oxygen atoms and each oxygen atom is bonden to two silicon atoms. The ratio of silicon to oxygen atoms is:
A. 2:02
B. 2:01
C. 1:02
D. 1:04
Answer:
C. 1:02
42. Which one of the following does not have allotropes?
A. N
B. P
C. As
D. Sb
Answer:
A. N
43. Which of the following does not occur in Free State?
A. Nitrogen
B. Phosphorous
C. Oxygen
D. Sulpher
Answer:
B. Phosphorous
44. Both O2 and O3 are Oxidizing agents but O3 is preferred because:
A. It is relatively unstable than O2
B. It provides an extra oxygen atom then O2
C. It provides Nacent Oxygen
D. All of above
Answer:
D. All of above
45. In which of the following the oxidation state of S is the highest?
A. SO2
B. SCI2
C. H2SO4
D. H2SO3
Answer:
C. H2SO4
