Solved Chemistry MCQS Set 5

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Solved Chemistry MCQS
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Which of the following is a colligative property?
Melting point
Osmotic pressure
Freezing point
Sublimation temperature

Covalent compounds are soluble in
Polar solvents
Concentrated acids
Non-polar solvents
All solvents

Acid rains are produced by
Excess NO2 and SO2from burning fossil fuels
Excess formation of CO2 by combustion and animal respiration
Excess release of carbon monoxide by incomplete combustion
Excess production of NH3 by industry and coal gas

Water (H2O) is liquid while hydrogen sulphide (H2S) is a gas because
Hydrogen sulphide is a weak acid
Water molecules associate through hydrogen
Sulphure has high electronegativity than oxygen
Water has higher molecular weight

Detergents are
None of the above
Synthetic products
Natural products
Both A and B

Which one of the halogen acid is a liquid?
Hl
HBr
HCl
HF

Tollen’s reagent is
Ammonical cuprous oxide
Ammonical silver bromide
Ammonical cuprous chloride
Ammonical silver nitrate

Which of the following substances is used as an antiknock compound?
Tetraethyl lead
Lead acetate
Ethyl acetate
Lead tetrachloride

Carbon atom holding halogen in aryl halides is
sp3-hybridesed
sp2-hybridesed
sp3d-hybridesed
sp-hybridesed

Heating a micture of sodium benzoate and soda lime gives
Benzene
Methane
Calcium benzoate
Sodium benzoate

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