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Chemistry

Chemistry
Among the fuels given below, the one with highest calorific value is

Natural gas
Wood
Coke
Coal

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Chemistry
Which of the following is used to iodise common salt ?

Potassium iodide
Sodium iodide
Iodine
Potassium iodate

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Chemistry
Wax used for making candle is chemically a mixture of

Cyclic hydrocarbons
Aliphatic hydrocarbons
Aliphatic and aromatic hydrocarbons
Aromatic hydrocarbons

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Chemistry
The major constituent of air is

nitrogen
carbon dioxide
oxygen
hydrogen

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Chemistry
Bakelite is a co-polymer of Phenol and

Cinnaldehyde
Acetaldehyde
Formaldehyde
Benzaldehyde

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Chemistry
The ore which is found in abundance in India is

bauxite
fluorspar
monazite
magnetite

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