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Chemistry

Chemistry
The major constituent of gobar gas is

Butane
Isobutane
Methane
Carbon dioxide

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Chemistry
Gunpowder consits of a mixture of

Sulphur, sand and charcoal
Sand and TNT
Nitre, sulphur and charcoal
TNT and charcoal

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Chemistry
The total energy of revolving electron in an atom

Can have any value above zero
Can never be positive
Cannot be negative
Will always be positive

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Chemistry
Among the following iron ores, the highest percentage of iron content is found in–

Magnetite
Limnonite
Haemetite
None of these

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Chemistry
Which of the following is the main compound of voter ink?

Silver Chloride
Ammonium Chloride
Ammonium Nitrate
Silver nitrate

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Chemistry
The most extensive, commercially useful source of thorium as monazite sand occurs in India at

West Bengal coast
Travancore coast
Orissa coast
Gujarat coast

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