Academic Category


Todays' Thought
In a day, when you don’t come across any problems – you can be sure that you are travelling in a wrong path.
- Swami Vivekananda
किसी दिन , जब आपके सामने कोई समस्या ना आये – आप सुनिश्चित हो सकते हैं कि आप गलत मार्ग पर चल रहे हैं |
- स्वामी विवेकानंद


    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