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Chemistry

Chemistry
Methanoic and ethanoic acids can be distinguished by the action of

SOCl2
Tollen's reagent
NaHCO3
NaOH

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Chemistry
Iron rusts quickly in

River water
Sea water
Rain water
Distilled water

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Chemistry
Which of the following fuels causes minimum environmental pollution?

Hydrogen
Kerosene
Coal
Diesel

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Chemistry
A powerful eye irritant present in smog is

Sulphur dioxide
Carbon dioxide
Nitric oxide
Peroxyacetyl nitrate

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Chemistry
In silvery paints, the main constituent present is

Silver powder
Aluminium powder
White lead
Lead powder

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

0.727
0.658
0.509
0.305

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