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Chemistry

Chemistry
Philosopher’s Wool is

Zinc oxide
Zinc carbonate
Zinc blende
Zinc sulphate

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Chemistry
Which of the following partial miscible liquid pairs has both lower and upper critical solution temperature

Aniline and n-hexane
Water and diethyl aniline
Water and Phenol
Glycerine and m-toluene

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Chemistry
The substance which does not expand on going from liquid state to solid state is

Aluminium
Type metal
Water
Cast-iron

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Chemistry
The substance most commonly used as a food preservative is

Acetic acid
Tartaric acid
Sodium carbonate
Sodium salt of benzoic acid

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Chemistry
Highly toxic gas which causes headache, visual difficulty, paralysis and even death is

CO2
All of these
O3
CO

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Chemistry
Which of the following is not present in German-silver?

Zinc
Copper
Nickel
Silver

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MORE MCQ ON Chemistry

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