Question # 1

Alkanes are least reactive compounds because they are.

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Saturated hydrocarbons.

Unsaturated hydrocarbons.

Both a and b

None of the above.

Chloroform is used for

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Anesthesia

Fever

Link

Toys

Which of following dehydration of alcohols take place:

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NaOH

KOH

H₂SO₄

HCl

Dehydration means removal of.

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Water

Halogen

Hydrogen

All above.

The order of reactivity of hydrogen halides with alkenes is.

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HI>HBr

HBr>HI

HCl>HBr

HBr < HCl

Incomplete combustion of alkanes produces.

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Carbon dioxide only

Carbon monoxide only

Carbon monoxide and carbon black

Carbon dioxide and carbon black

Which are called paraffines?

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Alkyle

Alkynes

Alkenes

Alkanes

The end product of oxidation of acetylene is.

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Propen glycol

Ethan glycol

Glyoxal

Oxalic acid

The alkanes consisting of C₅ to C₁₀

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gases

liquids

solid

plasma

Marsh gas is mostly consisted of.

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Butane

Propane

Ethane

Methane

Ethyne is oxidized by alkaline KMnO₄ then ....... hydroxyl group add to the triple bond.

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Two

Three

Four

Five

General formula of alkynes is:

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C_nH_n

C_nH_2n

C_nH_2n+2

C_nH_2n-2

Carbon Tetra chloride is used in .

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Fertilizer

Dry cleaning

Metallurgy

Anesthesia

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Chemistry 10th Class English Medium Unit 12 Online Test MCQs With Answers

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