Question # 1

Dehydrohalogenation of vicinal-dihalides take place in the presence of.

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NaOH

KOH

NaCl

None of these

Which one of the following is gas at room temperature:

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C2H6

C6H14

C6H6

C8H18

Dehydrohalogenation takes place in the presence of .

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NaOH aqueous

Alcoholic KOH

Aqeous KOH

Alcoholic NaOH

Halogenation of alkanes in the presence of diffused sunlight takes place.

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Suddenly, only in one step

Slowly in one step

In a series of step

Fastly in two steps

Molecular formula of butyne is .

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C₄H₆

C₃H₄

C₄H₇

C₄H₈

Ethylene glycol can be prepared with the reaction of KMnO₄ and _____

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CH = CH

CH₃ - CH₃

CH₃CH₂CH₃

CH₂= CH₃

Which one of these is a saturated hydrocarbon?

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C₂H₄

C₃H₆

C₄H₈

C₅H₁₂

The alkanes consisting of C₅ to C₁₀

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gases

liquids

solid

plasma

Alkanes give reaction only

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Addition

Decomposition

Substitution

Displacement

In shoe polished, which chemical is used.

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Ethanol

Methanol

Carbon black

Formaldehyde

The order of reactivity of hydrogen halides with alkenes is.

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HI>HBr

HBr>HI

HCl>HBr

HBr < HCl

Chemical formula of chloroform is :

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CH₂Cl₂

CH₃Cl

CHCl₃

CCl₄

Which are called paraffines?

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Alkyle

Alkynes

Alkenes

Alkanes

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