Question # 1

Substitution reaction is the characteristics of.

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Alkanes

Alkenes

Alkynes

None of these

A dynamic equilibrium

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Reaction stops to proceed

Amounts of reactants and products are equal

Rate of forward and reverse reaction are equl

Reaction can no longer be reversed.

A product of any Lewis acid base reaction is a single specie called.

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Salt

Water

Adduct

None of these

Which of the following statement s is not true about fossil fuels?

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they all contain carbon

They are renewable

they produce pollutants when burnt

they cause acid rain

Ozone has a smell

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Bitter

Rotten egg

Sweat

None of them

Catalytic converters convert.

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CO to CO₂

N₂ to NO

CO₂ to CO

N₂to NO₂

Forest fires and burning of wood emit.

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CO₂

NO₂

SO₂

Cl₂

The unit of molar concentration:

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mol. dm^-2

mol. dm^-1

mol. dm

mol. dm^-3

Which gas is used to destroy harmful bacteria in water?

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Iodine

Chlorine

Flourine

Bromine

Open chain compounds are also called:

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aliphatic compounds

alicyclic compounds

aromatic compounds

hydrocarbons

Formula of Decane is.

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C₁₀H₂₀

C₁₀H₂₂

C₁₀ H₄

C₁₀H₁₆

Smell of rancid butter is due to the presence of.

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Propanoic acid

Butanoic acid

Acitic acid

Citric acid

Manufacturing of urea involves:

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2 steps

3 steps

4 steps

5 steps

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