10th Class Chemistry Chapter 4 English Medium Online MCQ Test With Answer

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MCQ's Test For Chapter 4 "Hydrocarbons"

Try The MCQ's Test For Chapter 4 "Hydrocarbons"

  • Total Questions12

  • Time Allowed15

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Hydrocarbons

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Question # 1

Some orchids attracts bees for pollination by producing.

Question # 2

Oxidation of ethene with KMnO4produces.

Question # 3

Marsh gas is mostly :

Question # 4

Boiling point of alcohol in centigrade is.

Question # 5

Carbon black is used in the manufacture of.

Question # 6

Alkanes do not react in

Question # 7

Which is the substitution reaction in the following?

Question # 8

Which gas creates suffocation and causes death?

Question # 9

Amont the followign substitution reaction is characteristics of.

Question # 10

By which process alkenes are prepared from alcohols:

Question # 11

Dichloromethane reacts with halogens in the presence of diffused sun light and produces

Question # 12

In which one of the following is a substitution reaction?

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Sr. # Question Answer
1 Halogenation of alkanes in the presence of diffused sunlight takes place.

A. Suddenly, only in one step

B. Slowly in one step

C.In a series of step

D. Fastly in two steps

2 The order of reactivity of hydrogen halides with alkenes is.

A. HI>HBr

B. HBr>HI

C.HCl>HBr

D. HBr < HCl

3 Which hydrocarbon molecule would have no effect on the aqueous solution of bromine?

A. CH4

B. C10H20

C.C2H4

D. C2H2

4 Chloroform is used for

A. Anesthesia

B. Fever

C.Link

D. Toys

5 Dehydrohalogenation takes place in the presence of .

A. NaOH aqueous

B. Alcoholic KOH

C.Aqeous KOH

D. Alcoholic NaOH

6 Amont the followign substitution reaction is characteristics of.

A. Alkanes

B. Alkenes

C.Alkynes

D. None of these

7 The reduction of alkyl halides takes place in the presence of

A. Zn/HCl

B. Na/HCl

C.Mg/HCl

D. Cu/HCl

8 Hydrogenation of alkenes and alkynes may be carried out at room temperature in the presence of catalyst:

A. Pt or Pd

B. Ni

C.Zn

D. Fe2O3

9 Which one of the following is gas at room temperature:

A. C2H6

B. C6H14

C.C6H6

D. C8H18

10 One of the hydrocarbons reacts with one mole of hydrogen to form a saturated hydrocarbon. What is the formula could be of the x:

A. C3H8

B. C6H12

C.C4H10

D. C2H16

11 Which hydrocarbon decolorizes the pink colour of acidic solution of potassium permanganate?

A. CH4

B. C2H4

C.C2H6

D. C2H5

12 A hydrocarbon has molecular formula C8H14. What is the molecular formula of the next number of the same homologous series.

A. C9H18

B. C9H16

C.C9H20

D. C9H12

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