Question # 1

Which one is the formula of chloromethane.

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CH₂Cl₂

CCl₄

CHCl₃

CH₃Cl

In dry cleaning, which chemical is used.

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Chloroform

Carbon tetachloride

Ecetaldehyde

Ethanol

The alkanes consisting of C₅ to C₁₀

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gases

liquids

solid

plasma

The order or reactivity of hydrogen halides with alkenes is.

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HI/Br

HBr > HI

HCl > HBr

HBr>HCl

Traces of acetylene are present to coal gas about.

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0.06 %

0.08%

1.1 %

90%

Chemical formula of chloroform.

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CH₃Cl

CH₂O₂

CHCl₂

CCl₄

Which gas creates suffocation and causes death?

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CO

CO₂

SO₃

SO₂

Incomplete combustion of alkanes produce.

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Carbon dixoide only

Carbon monoxide only

Carbon monoxide carbon black and water

Carbon dioxide and carbon black

Which are called paraffines?

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Alkyle

Alkynes

Alkenes

Alkanes

Halogenation of methane produces following valuable chemical compounds used as solvents except.

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Carbonterachloride

Chloroform

Carbon Black

Chloromethane

Some orchids attracts bees for pollination by producing.

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alkanes

almenes

alkynes

all the above.

Carbon black is used in the manufacture of.

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Dry cleaning

Shoe polishes.

Fertilizer

None of these

Which one of these is a saturated hydrocarbon?

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C₂H₄

C₃H₆

C₄H₈

C₅H₁₂

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