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Chemistry

Chemistry
By-product obtained by soap industry is

Glycerol
Caustic soda
Caustic potash
Naphthalene

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Chemistry
Which of the toxic heavy metals is found in modern tannery industries ?

Chromium
Nickel
Lead
Zinc

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Chemistry
The number of electrons presents in H+ is

zero
one
two
three

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Chemistry
Who developed Hydrogen Bomb?

J. Robert Oppen Heimer
Samuel Cohen
Edward Teller
Wernher Von Braun

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Chemistry
The chemical formula of the laughing gas is

N2O3
N2O
NO
NO2

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Chemistry
Dry ice is the solid form of :

Nitrogen
Air
Carbon di–oxide
Water

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MORE MCQ ON Chemistry

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