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Todays' Thought
Those who cannot change their minds cannot change anything.
- George Bernard Shaw
जो अपना दिमाग नहीं बदल सकते वे कुछ भी नहीं बदल सकते |
- जार्ज बर्नार्ड शा


    Chemistry Question & Answer in English

6.
The nucleus of a hydrogen atom consists of - 
A.  1 proton only
B.  1 proton + 2 neutrons
C.  1 neutron only
D.  1 electron only

7.
Which is used in preparation of dynamite?
A.  Glycerol
B.  Ethyl alcohol
C.  Methyl alcohol
D.  Glycol

8.
Air contains maximum amount of -
A.  Oxygen
B.  Nitrogen
C.  Hydrogen
D.  Carbon - dioxide

9.
The chemical name of washing soda is -
A.  Sodium sulphate
B.  Sodium Bicarbonate
C.  Sodium carbonate
D.  Sodium Biosulphate

10.
Periodic table was given by -
A.  Faraday
B.  Lavoisier
C.  Arrhenius
D.  Mendeleef

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