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Todays' Thought
Meeting the deadlines is not good enough, beating the deadlines is my expectation.
- Dheerubhai Ambani
समय सीमा पर काम ख़तम कर लेना काफी नहीं है ,मैं समय सीमा से पहले काम ख़तम होने की अपेक्षा करता हूँ |
- धीरूभाई अंबानी


    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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