Question # 1

Dehalogenation of tetrahalides produces acetylene. This reaction takes place in the presence of

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Sodium metal

Zinc metal

Magnesium metal

Potassium metal

The end product of oxidation of acetylene is.

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Propen glycol

Ethan glycol

Glyoxal

Oxalic acid

____________ use for ripening of fruits.

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Ethene

Ethane

Ethyne

Propane

Carbon Tetra chloride is used in .

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Fertilizer

Dry cleaning

Metallurgy

Anesthesia

Oxidation of alkenes forms:

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Glycol

Glyoxal

Formic acid

Oxalic acid

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

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CH = CH

CH₃ - CH₃

CH₃CH₂CH₃

CH₂= CH₃

Chemical formula of chloroform is :

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CH₂Cl₂

CH₃Cl

CHCl₃

CCl₄

Which hydrocarbon has no effect on an aqueous solution of bromine.

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CH₄

C₁₀H₂₀

C₂H₂

C₂H₄

Oxidation of alkenes produce.

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Glyoxal

Glycol

Oxalic acid

Formic acid

Volatility of hydrocarbons deceases with:

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decrease of molecular mass

increase of molecular mass

increase of double or triple bonds

decrease of triple bonds

In which one of the following is a substitution reaction?

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Halogenations of alkynes

Halogenations of alkenes

Halogenations of alkanes

Bromination of alkenes

Which of the following gas is used in warfare?

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Methane

Ethane gas

Mustard gas

None of these

Dehydration of alcohols can be carried out with.

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NaOH

KOH

H₂SO₄

HCl

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