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Chemistry

Chemistry
Which gas is used for converting vegetable oils into saturated fats ?

Cl2
SO2
H2
O2

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Chemistry
Domestic cooking gas consists mostly of

Methane and ethane
Ethylene and carbon monoxide
Liquified butane and isobutane
Hydrogen and acetylene

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Chemistry
The molecular mass of a gas is

Not related to its vapour pressure
Half its vapour pressure
Equal to its vapour pressure
Twice its vapour pressure

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Chemistry
Which of the following causes the rusting of iron? a. Oxidation b. Reduction c. Chemical reaction with oxygend. Chemical reaction with CO2

C and d
A and c
A and b
B and c

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Chemistry
For extinguishing fire, we use

Hydrogen
Marsh gas
Carbon Dioxide
Carbon Monoxide

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Chemistry
Match the sourc in Column B with the product of Column A. (Product) Column B (Source)A. Formic acid1. LemonB. Citric acid 2. TamarindC. Tartaric acid3. Ants

A B C 3 1 2
A B C 2 3 1
A B C 2 1 3
A B C3 2 1

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