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Chemistry

Chemistry
The atomic number of carbon is 6 and its atomic mass is 12. How many are there protons in the nucleus of carbon ?

12
Zero
6
18

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Chemistry
Which of the following statements are correct about chloroform? a. Liquid fuel b. Anaesthetic in nature c. Produces phosgene d. Fire extinguisher

D, a
A, c
A, b
B, c

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Chemistry
Copper substances when exposed to air gains a green coating due to the formation of:

Cu(NO3)2
CuCO3 Cu(OH)2
CuO
CuSO4

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Chemistry
The gas used in the manufacture of vanaspati from vegetable oil is

hydrogen
nitrogen
carbon dioxide
oxygen

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Chemistry
Smoke is formed due to

Solid dispresed in liquid
Gas dispresed in solid
Solid dispersed in gas
Gas dispersed in gas

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Chemistry
Which one of the following is also known as solution ?

A compound
A suspension
A homogeneous mixture
A heterogeneous mixture

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MORE MCQ ON Chemistry

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