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
have________.

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
b) HCHO
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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