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11 . How many nonmetals are in solid state ?
A. 10 B. 11
C. 12 D. 13

12 . How many nonmetals are in gaseous state ?
A. 10 B. 11
C. 12 D. 13

13 . The atomic number of sulphur is...
A. 15 B. 16
C. 17 D. 18

14 . Which of the following is used as a fuel in space rockets ?
A. phenol B. Liquid Hydrogen
C. Liquid Nitrogen D. Refined Kerosene

15 . _____ is a metalloid.
A. Silicon B. Copper
C. Sodium D. Bromine




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