General Knowledge - Chemistry


1.  Which is used to produce artificial rain?
A. sand
B. copper oxide
C. silver iodide
D. silver nitrate

2.  DDT is an
A. explosive
B. antibiotic
C. enzyme
D. insecticide

3.  The concept of ellipitical orbitals was suggested by
A. Thomson
B. Neil Bohr
C. Rutherford
D. Sommerfeld

4.  Water drops are spherical because of
A. polarity
B. viscosity
C. surface tension
D. density is one

5.  Aspirin is
A. ethyl salicylate
B. methyl salicylate
C. sodium salicylate
D. acetyl salicylic acid

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