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Chemistry

Chemistry
The main constituent of biogas is

Methyl alcohol
Methane
Oxygen
Acetic acid

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Chemistry
Liquid Nitrogen boils at

82 Kelvin
97 Kelvin
54 kelvin
77 kelvin

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Chemistry
Interveinal necrotic spots on leaves appear due to

NO2injury
HF injury
O3injury
SO2injury

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Chemistry
Detergents used for cleaning clothes and utensils contain

Sulphonates
Bismuthates
Nitrates
Bicarbonates

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Chemistry
Which of the following electrodes is used in strongly alkaline solution

Mercury - mercurous chloride electrode
Mercury - mercurous sulphate electrode
Mercury - mercuric oxide electrode
Silver - silver chloride electrode

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Chemistry
Iron is extracted from

Bauxite
Haematite
Cinnabar
Dolomite

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MORE MCQ ON Chemistry

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