Choose the correct options for the following questions.
Each atom in a metal crystal
Difficulty: Easy
A:
Remains fixed
B:
Vibrated about a fixed about
C:
Moves randomly
D:
Rotates about centre of the crystal
When relatively simple molecules are chemically combined into massive molecules, the reaction is called:
Difficulty: Easy
A:
Fission reaction
B:
Fusion reaction
C:
Polymerization reaction
D:
Any of these
The structure of polymeric solid is:
Difficulty: Easy
A:
An ordered structure
B:
A disordered structure
C:
Intermediate between order and disorder
D:
Any of these
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