11). Unit of charge is
A). Coulomb |
B). Faraday |
C). Newton |
D). Volt |
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12). Non-stick kitchen wares are coated with
A). PVC |
B). Graphite |
C). Teflon |
D). Silicon |
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13). Find the odd place out :
A). Kakarapura |
B). Kavanur |
C). Kodaikanal |
D). Hyderabad |
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14). Persistence of mission is the principle behind
A). Camera |
B). Spectroscope
|
C). Cinema |
D). Periscope |
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15). Gobar gas mainly contains
A). Carbon dioxide |
B). Carbon monoxide |
C). Hydrogen sulphide |
D). Methane |
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16). The chief constituent of vinegar is
A). formic acid |
B). acetic acid |
C). salicylic acid |
D). oxalic acid |
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17). The fibre least prone to catch fire is
A). Nylon |
B). Polyester |
C). Cotton |
D). Terylene |
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18). Setting of Plaster of Paris involves
A). dehydration process |
B). hydration to form other hydrates |
C). oxidation process |
D). reduction process |
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19). The chemical name for the compound having formula NaOH is
A). Caustic soda |
B). Caustic potash |
C). Soda ash |
D). Sodium hydroxide |
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20). Helium gas is filled in balloons because
A). its atomic number is 2 |
B). it is lighter than air |
C). it is one of the constituents of water |
D). it is a noble gas |
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