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Chemistry

Chemistry
The maximum number of covalent formed by nitrogen is

1
2
3
4

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Chemistry
Threshold limit value of copper in the atmospheric air is

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

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Chemistry
Gypsum is used for improvement of:

Saline soils
Alkaline soils
Podsols
Acidic soils

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Chemistry
The material known in commerce as Terylene is a

Synthetic fibre
Modified natural fibre
Natural fibre
Blend of cotton and silk

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Chemistry
Which one of the following is found in Vinegar ?

Acetic acid
Butyric acid
Propionic acid
Formic acid

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Chemistry
Which of the following elements is not present in stainless steel?

Iron
Chromium
Tungsten
Nickel

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MORE MCQ ON Chemistry

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