Academic Category

Todays' Thought
Do the hard jobs first. The easy jobs will take care of themselves.
- Dale Carnegie
पहले कठिन काम पूरे कीजिये. आसान काम खुद-बखुद पूरे हो जायेंगे |
- डेल कार्नेगी

    Chemistry Question & Answer in English

First atomic theory was proposed by -
A.  John Dalton
B.  E. Rutherford
C.  De Broglie
D.  D.I. Mendeleef

Normal valence of nitrogen is -
A.  2
B.  3
C.  4
D.  5

Which of the following gas is used in eigarette lighters -
A.  Butane
B.  Propane
C.  Methane
D.  Ethane

Which of the following is not a non-electrolyte-
A.  Acetic Acid
B.  Ethanol
C.  Glucose
D.  Urea

Permanent Hardness of the water can be removed by adding -
A.  Soda lime
B.  Washing soda
C.  Sodium Bicarbonate
D.  Sodium chloride