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Todays' Thought
Action to be effective must be directed to clearly conceived ends.
- Jawaharlal Nehru
कार्य के प्रभावी होने के लिए उसे स्पष्ठ लक्ष्य की तरफ निर्देशित किया जाना चाहिए |
- जवाहरलाल नेहरु


    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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