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Directions to Solve

In each of the following questions, five words have been given out of which four are alike in some manner, while the fifth one is different. Choose the word which is different from the rest.

Q1: Choose the word which is different from the rest.

A Paper

B Wool

C Wood

D Plastic

E Leather

Q2: An atom of a semiconductor has _______________ electrons in the valence shell.

A 4

B 8

C 2

D 0

  

Q3: Oxidation process results in the formation of

A carbon dioxide

B nitrates

C sulphates

D all the above.