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Chemistry

Chemistry
Piped Natural Gas (PNG) is used for

Welding
Mining
Anaesthesia
Cooking

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Chemistry
Which one of the following organic compounds has fruity smell?

Ester
Alcohol
Ether
Aldehyde

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Chemistry
The working of a dry cell is based on

Spontaneous oxidation-reduction reaction
Combination reaction
Electrolysis
Decomposition reaction

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Chemistry
The metal used for making aircrafts and rockets is

Lead
Copper
Aluminium
Nickel

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Chemistry
The chemical used in embalming biological materials is

Gaseous formaldehyde
Ethylene glycol
Formaldehyde in water
Formaldehyde in methanol

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Chemistry
Which one of the following minerals is found in pure form?

Manganese
Iron
Copper
Bauxite

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