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Chemistry

Chemistry
Which one of the following is not present in cement ?

Alum
Gypsum
Alumina
Clay

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Chemistry
Which of the following is not a greenhouse gas ?

Nitric oxide
Hydrogen
Chlorofluorocarbon
Carbon dioxide

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Chemistry
Silicon is used in

Transistors
All of these
Semiconductors
Solar energy devices

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Chemistry
Aquaregia is a mixture of the following in the ratio 1 : 3 by volume

Conc. HNO3 and conc. H2SO4
Conc. HCl and conc. HNO3
Dil. HCl and dil. HNO3
Conc. HNO3 and conc. HCl

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Chemistry
Which of the following is an iron ore ?

Bauxite
Magnetite
Lignite
Nitrite

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Chemistry
The aqueous solution of potassium chloride is

A strong electrolyte
A weak electrolyte
A non-electrolyte
Initially weak and then become a strong electrolyte

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MORE MCQ ON Chemistry

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