Chemistry
6. Which one of the following hormones contains peptide chain ?
(A) Insulin
(B) Corticotrophin
(C) Cortisone
(D) Oxytocin
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Correct Answer: (C)
7. Which one of the following gases is released mostly from landfills in urban areas ?
(A) Hydrogen
(B) Nitrogen
(C) Oxygen
(D) Methane
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Correct Answer: (D)
8. The most serious air pollutants causing health hazard is :
(A) Sulphur dioxide
(B) Ozone
(C) Nitrogen oxide
(D) Carbon monoxide
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Correct Answer: (A)
9. The chemical name of quartz is :
(A) Calcium Phosphate
(B) Calcium oxide
(C) Sodium silicate
(D) Sodium phosphate
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Correct Answer: (C)
10. The number of hydrogen bonds between guanine and cytosine in DNA is :
(A) 2
(B) 3
(C) 4
(D) 1
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Correct Answer: (B)
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