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Chemistry

Chemistry
Maximum permissible concentration of total hardness in drinking water is

500
200
100
50

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Chemistry
Indane gas is mixture of

Butane and hydrogen
Butane and propane
Butane and oxygen
Methane and oxygen

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Chemistry
The least preferred technique in the disposal of Municipal Solid Waste is

Incineration
Land filling
Composting
Bricketting

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Chemistry
The three elements most needed in common fertilisers are :

Calcium, Phosphorous and Potassium
Nitrogen, Potassium and Phosphorous
Phosphorous, Sodium and Nitrogen
Sulphur, Phosphorous and Sodium

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Chemistry
The oil used in the froth floatation process is

olive oil
coconut oil
pine oil
kerosene oil

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Chemistry
Atoms of same element having different mass numbers are called________

Isotopes
Isomers
Isobars
Isotones

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MORE MCQ ON Chemistry

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