Question # 1

Which acid is present in our stomach.

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Nitric acid

Hydrochloric acid

Sulphuric acid

All of these

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 one is Lewis Acid?

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BF₃

AICI₃

FeCl₃

All of these

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

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Carbonterachloride

Chloroform

Carbon Black

Chloromethane

Dehydrohalogenation takes place in the presence of .

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NaOH aqueous

Alcoholic KOH

Aqeous KOH

Alcoholic NaOH

The percentage of ocean in world water is.

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50%

67%

97%

25%

The percentage of water in human body is.

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40%

50%

60%

70%

Condensed formula of ethane is.

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C₃H₈

C₂H_2n+2

C₂H_2n-2

C_nH_2n+1

Which one of the following is not faction of crude oil.

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Paraffin wax

Asphalt

Fuel oil

Petroleum coke

If Qc = Kc the reaction goes in:

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Forward

Reverse

At equilibrium state

None

Which one is a pentahydroxy ketone?

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sucrose

glucose

fructose

lactose

The pH of water containing CO₂ is

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4-6

5.6-6

6-7

7-8

Which one of the following organic compound is found is gasoline?

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C₂H₄

C₃H₈

C₇H₁₀

C₁₂H₂₆

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