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Chemistry

Chemistry
The sewage obtained from water closets and urinals is known as

Garbage
Industrial waste
Sanitary waste
Sullage

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Chemistry
The three elements most needed in common fertilisers are :

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

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Chemistry
Indane gas is mixture of

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

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Chemistry
The number of neutrons present in an element having mass number 226 and atomic number 88 is :

314
50
88
138

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Chemistry
Main pollutants released from iron and steel industry are

CO2, NO2 and SO3
NO, SO3 and H2S
CO, CO2 and SO2
CO2, H2S and NO2

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Chemistry
The biogas used for cooking is a mixture of which of the following?

Isobutane and propane
Methane and carbon monoxide
Carbon dioxide and oxygen
Methane and carbon dioxide

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MORE MCQ ON Chemistry

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