Academic Category


Todays' Thought
If you think you can – you can! If you think you cannot – you cannot! And either way……..you are right !”
- Shiv Khera
अगर आप सोचते हैं कि आप कर सकते हैं-तो आप कर सकते हैं !अगर आप सोचते हैं कि आप नहीं कर सकते हैं- तो आप नहीं कर सकते हैं ! और दोनोंहीसूरतोमें..………आप सही हैं.!
- शिव खेड़ा


    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