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Chemistry

Chemistry
The number of electrons presents in H+ is

zero
two
three
one

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Chemistry
Chemical formula of washing soda is

Na2CO3.10H2O
Ca(OH)2
Na2SO4.10H2O
NaHCO3

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Chemistry
Which of the following is a method/process of disposing of solid waste which cannot be reused or recycled ?

Pyrolysis and Gasification
Incineration
All listed here
Landfills

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Chemistry
Water can be separated from alcohol water mixture by

Evaporation
Decantation
Sublimation
Distillation

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Chemistry
Which is the purest form of iron?

Cast iron
Pig iron
Wrought iron
Steel

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

Zinc
Lead
Chromium
Nickel

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MORE MCQ ON Chemistry

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