Chemistry - General Knowledge Questions and Answers

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The molecular mass of a gas is

Twice its vapour pressure

Equal to its vapour pressure

Half its vapour pressure

Not related to its vapour pressure

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The value of gas constant R in Ergs deg^–1 mole^–1 is

8.314 × 10⁷

8.341 × 10⁷

8.413 × 10⁷

4.183 × 10⁷

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The absolute temperature of a gas is doubled and the pressure is reduced to half, the volume of the gas

Remains unchanged

Will be doubled

Will increase four-fold

Will be reduced to half

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Isobars are lines joining places having equal

Rainfall

Pressure

Population

Height above sea-level

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Two moles of an ideal gas expand freely into vacuum. The work done by the gas is

Infinity

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The Fungus which is used in the alcohol industry is

Mushroom

Candida Aibicans

Yeast

Rhizopus

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Which of the following is used to denature ethanol ?

Methyl alcohol

Propyl alcohol

Phenol

Methane

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Ethanol containing 5% water is known as

Rectified spirit

Denatured spirit

Methylated alcohol

Power alcohol

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Alcohol prepared by the distillation of wood is :

Propyl alcohol

Methyl alcohol

Ethyl alcohol

Glycerol