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Chemistry

Chemistry
Threshold limit value of copper in the atmospheric air is

1.0 mg/m3
0.001 mg/m3
5.0 mg/m3
0.01 mg/m3

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Chemistry
Which is the purest commercial form of iron ?

Steel
Wrought iron
Stainless steel
Pig iron

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Chemistry
Which is known as carbolic acid?

Ethanol
Phenol
Oxalic acid
Acetic acid

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Chemistry
Saline soil contains

None of these
High concentration of salt
Lot of moisture
Hard rocks

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Chemistry
Of the following commonly used materials, the one that is not an alloy is

Steel
Copper
Brass
Bronze

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Chemistry
Taj Mahal is greatly affected due to :

Deforestation
Sound pollution
Tourists
Acid rain

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MORE MCQ ON Chemistry

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