Question # 1

The treatment of benzene with isobutene in the presence of sulphuric acid give

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Isobutyl benzene

Tert-Butyl benzene

n-Butyl benzene

no reaction

The rotation of two carbon atoms joined by double bond would happened only if

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Pi bond is broken

Sigma bond is broken

Both bonds are broken

None of above

Phosphide ion has the electronic structure similar to that of

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Nitride ion

Fluoride ion

Sodium ion

Chloride ion

Leblanc process is employed in the manufacture of

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Baking soda

Washing soda

Potash

Plaster of paris

Saturated solution of NaCI on heating becomes

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Super saturated

Unsaturated

Remains saturated

None

In crystal structure of sodium chloride the arrangement of CI^- ions is

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Fee

Both fee and bcc

Bee

None of these

Propyne on hydrolysis in presence of H₂SO₄ and HgSO₄ gives

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Acetaldehyde

Actone

Formaldehyde

None

An endothermic reaction is one in which

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Heat is converted into electricity

Heat is obsorbed

Heat is evolved

Heat is converted into mechanical work

Which of the following will not change the concentration of ammonia in the equilibrium N₂(g) + 3H₂(g) 2NH₃(g): ΔH = -kj

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Increase of pressure

Increase of temperature

Decrease of volume

Addition of catalyst

Red lead is

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PbO

Pb₃O₄

PbO₂

Pb₄O₃

Toluene can be oxidized to benzonic acid by

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KMnO4 (alk)

K₂Cr₂O₇(acidic)

Both

None

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