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Chemistry

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

Methane
Ethane
Acetylene
Ethylene

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Chemistry
Soldering of two metals is possible because of the property of :

Osmosis
Cohesion
Viscosity
Surface tension

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Chemistry
Commercial Vaseline is derived from

Petroleum
Coal tar
Wool wax
Plant gums

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Chemistry
What is the mass percentage of carbon in carbon dioxide (CO2)

0.323
0.273
0.158
0.201

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Chemistry
The chemical name of 'laughing gas' is

Nitric oxide
Nitrogen dioxide
Nitrous oxide
Nitrogen pentoxide

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

Remains unchanged
Will increase four-fold
Will be doubled
Will be reduced to half

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MORE MCQ ON Chemistry

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