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Chemistry

Chemistry
The gas used for artificial fruit ripening of green fruit is

Ethane
Methane
Acetylene
Ethylene

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Chemistry
Which of the following alloy is used in making magnet ?

Alnico
Duralumin
Stainless steel
Magnalium

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Chemistry
Submarines move under water. They have engines that run on

Petrol and oxygen
Batteries
Diesel
Steam

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Chemistry
Among the fuels given below, the one with highest calorific value is

Natural gas
Coke
Wood
Coal

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Chemistry
Milk tastes sour when kept in the open for sometime due to the formation of

Acetic acid
Carbonic acid
Lactic acid
Citric acid

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Chemistry
Vinegar is an aqueous solution of

Oxalic acid
Acetic acid
Hydrochloric acid
Citric acid

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