General Knowledge - Chemistry

Exercise :: Chemistry - Section 1

  • Chemistry - Section 1
13. 

The nucleus of a hydrogen atom consists of

A. 1 proton only
B. 1 proton + 2 neutron
C. 1 neutron only
D. 1 electron only

Answer: Option A

Explanation:

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14. 

The heat required to raise the temperature of body by 1 K is called

A. specific heat
B. thermal capacity
C. water equivalent
D. None of the above

Answer: Option B

Explanation:

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15. 

The nuclear particles which are assumed to hold the nucleons together are

A. electrons
B. positrons
C. neutrons
D. mesons

Answer: Option D

Explanation:

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16. 

The mass of P4O10 that will be obtained from the reaction of 1.33 gram of P4 and 5.07 of oxygen is

A. 2.05 gram
B. 3.05 gram
C. 4.05 gram
D. 5.05 gram

Answer: Option B

Explanation:

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17. 

The octane number of zero is assigned to

A. 2-methyl octane
B. n-heptane
C. iso-octane
D. 3-methyl octane

Answer: Option B

Explanation:

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18. 

The metal that is used as a catalyst in the hydrogenation of oils is

A. Ni
B. Pb
C. Cu
D. Pt

Answer: Option A

Explanation:

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