Academic Category


Todays' Thought
If you don’t like something, change it. If you can’t change it, change your attitude.
- Maya Angelou
अगर आप कोई चीज पसंद नहीं करते तो उसे बदल दीजिये, अगर आप उसे बदल नहीं सकते तो अपना नजरिया बदल दीजिये |
- माया एंजिलो


    Chemistry Question & Answer in English

1.
Who is regarded as father of modern chemistry?
A.  Rutherford
B.  Einstein
C.  Lavoisier
D.  C.V. Raman

2.
The number of electrons and neutrons of an element is 18 and 20 respectively. Its mass number is - 
A.  22
B.  2
C.  38
D.  20

3.
Which of the following is also known as Laughing gas -
A.  Nitric oxide
B.  Nitrous oxide
C.  Nitrogen penta oxide
D.  Nitrogen

4.
Which of the following is not a type of element -
A.  Metals
B.  Non- metals
C.  Gases
D.  Metalloids

5.
pH value of water is -
A.  4
B.  7
C.  12
D.  18

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