Chemistry Of Hydrocarbons - Chapter No 15

Right Answers have been shown below in red color.

1. The compounds which consist of hydrogen and carbon are called ___________ .

a) Hydrocarbons
b) Carbon
c) Organic
d) Inorganic

2. n-butane is the example of ________.

a) Propane
b) Hydrocarbon
c) Alkenes
d) Butyne

3. The saturated hydrocarbons are the compounds of hydrogen and carbon which

a) All double bonds
b) All triple bonds
c) All single bonds
d) None of these

4. Alkenes and cycloalkenes are examples of ________.

a) Unsaturated hydrocarbons
b) Aromatic hydrocarbons
c) Simple hydrocarbons
d) Saturated hydrocarbon

5. Alkanes are also called _________.

a) Paraffins
b) Hydrocarbons
c) Organic compounds
d) None of these

6. Alkenes have at least one Carbon–Carbon ________ bond.

a) Single
b) Double
c) Triple
d) None of these

7. Alkynes have at least one carbon-carbon ________ bond.

a) Triple
b) Double
c) Single
d) None of these

8. Methane is also called ________ gas.

a) Hydrogen
b) Nitrogen
c) Marsh
d) Simple

9. The natural gas contains ________ methane.

a) 85-90%
b) 80-85%
c) 75-80%
d) 70-75%


10. The laboratory preparation of methane is given as ________.

chemistry of hydrocarbons - chap 15

11.The boiling point of methane is ___________.

a) -162ºC
b) -192ºC
c) 202ºC
d) 702ºC

12. Methane is ________ in water.

a) Reactive
b) Soluble
c) Insoluble
d) None of these

13. The formula for dichloro methane is _______.

a) CH2 Cl2
b) CH3 Cl2
C) CH3 Cl
d) None of these

14. The formula for tetrachloro methane is__________.

a) CH2 Cl2
b) CH3 Cl2
c) CCl4
d) CHCl3

15. CH3 Cl2 +Cl2  → ____________.

a) CH2 Cl2 + HCl
b) CHCl2 + HCl
C) C+ 4HCl
d) CCl4+ HCl

16. CH4 + 2Cl2 → _________.

a) CCl4 + HCl
b) C+ 4HCl
c) C + 9HCl
d) CHCl3 + HCl

17. The reducing order of reactivity of halogens is ________.

a) Cl2 > Br2 > I2
b) Cl2 < Br2 > I2
c) Br2 >Cl2 > I2
d) I2 > Br2 > Cl2

18. The process of racking represented as_________.

chemistry of hydrocarbons - chap 15 (2)

19. The formula for the formaldehyde is ___________.

a) CH3OH
C) CH4Cl
d) None of these

20. The commercial preparation of “H2” is represented by the following equation.

chemistry of hydrocarbons - chap 15 (1)

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