1. The inherited traits of an organism are controlled by
A. RNA molecules
B. nucleotides
C. DNA molecules
D. enzymes
2. The Latin word formica means ant. The name formic acid is derived from this Latin word because
A. this acid, in ancient times, was used to eliminate ant-hills
B. this corrosive acid is secreted by ants to drive away their enemies
C. this acid was first obtained by the distillation of ants
D. ants are attracted by the odour of this acid
3. The ore which is found in abundance in India is
A. monazite
B. fluorspar
C. bauxite
D. magnetite
4. The most abundant rare gas in the atmosphere is
A. He
B. Ne
C. Ar
D. Xe
5. The heat energy produced when the human body metabolises 1 gram of fat is
A. 30 KJ
B. 1 KJ
C. 39 KJ
D. 29 KJ
6. What are the number of moles of CO2 which contains 16 g of oxygen?
A. 0.5 mole
B. 0.2 mole
C. 0.4 mole
D. 0.25 mole
ANSWERS:
1. Answer: Option C
2. Answer: Option C
3. Answer: Option A
4. Answer: Option C
5. Answer: Option C
6. Answer: Option A
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