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12th Unit

10th Chemistry English Medium Chapter 4 Test

Matric Part 2/10th Class Chemistry Chapter 12 MCQ Test With Answer for Unit 12 Hydrocarbons

This online test contains MCQs about following topics:.

- Alkanes.

- Alkenes.


10th Chemistry Chapter Wise Test
(English Medium)

Click Here for Chemistry Urdu Medium Ch 4 MCQ Test

Matric Part 2/10th Class Chemistry Chapter 12 MCQ Test With Answer for Unit 12 Hydrocarbons

Sr. # Questions Answers Choice
1 Ethylene glycol can be prepared with the reaction of KMnO<sub>4</sub> and _____
  • A. CH = CH
  • B. CH<sub>3</sub> - CH<sub>3</sub>
  • C. CH<sub>3</sub>CH<sub>2</sub>CH<sub>3</sub>
  • D. CH<sub>2</sub>= CH<sub>3</sub>
2 Dichloromethane reacts with halogens in the presence of diffused sun light and produces
  • A. Carbon tetrachloride
  • B. Chloroform
  • C. Chloromethane
  • D. No reaction
3 Which hydrocarbon has no effect on an aqueous solution of bromine.
  • A. CH<sub>4</sub>
  • B. C<sub>10</sub>H<sub>20</sub>
  • C. C<sub>2</sub>H<sub>2</sub>
  • D. C<sub>2</sub>H<sub>4</sub>
4 Ethyne is oxidized by alkaline KMnO<sub>4</sub> then ....... hydroxyl group add to the triple bond.
  • A. Two
  • B. Three
  • C. Four
  • D. Five
5 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. C<sub>3</sub>H<sub>8</sub>
  • B. C<sub>6</sub>H<sub>12</sub>
  • C. C<sub>4</sub>H<sub>10</sub>
  • D. C<sub>2</sub>H<sub>16</sub>
6 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
7 Dehydrohalogenation of vicinal-dihalides take place in the presence of.
  • A. NaOH
  • B. KOH
  • C. NaCl
  • D. None of these
8 Alkanes do not react in
  • A. Diffused sunlight
  • B. Dark
  • C. Bright sunlight
  • D. None of these
9 Halogenation of methane produces following valuable chemical compounds used as solvents except.
  • A. Carbonterachloride
  • B. Chloroform
  • C. Carbon Black
  • D. Chloromethane
10 Molecular formula of butyne is .
  • A. C<sub>4 </sub>H<sub>6</sub>
  • B. C<sub>3</sub>H<sub>4</sub>
  • C. C<sub>4</sub>H<sub>7</sub>
  • D. C<sub>4</sub>H<sub>8</sub>

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