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Chemistry

Chemistry
Which among the following is a carbohydrate ?

Hydrogen peroxide
Cane-sugar
Nylon
Turpentine

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Chemistry
Sea weeds are important source of

Bromine
Chlorine
Iron
Iodine

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Chemistry
The ionic radii of N3-, O2-, F- and Na+ follows the order

Na+ > O2- > N3- > F-
N3- > O2- > F- > Na+
N3- > Na+ > O2- > F-
O2- > F- > Na+ > N3-

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Chemistry
Candle is a mixture of

Bees wax and paraffin wax
Paraffin was and stearic acid
Bees wax and stearic acid
Higher fatty acids and stearic acid

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Chemistry
Which of the following caused radioactive pollution along the coast of Kerala ?

Zinc
Radium
Thorium
Plutonium

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Chemistry
Nitrogen in water is commonly found in the form of

Nitrite
Nitrate
Nitrous oxide
Nitric oxide

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