| 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 |
Some orchids attracts bees for pollination by producing. |
- A. alkanes
- B. almenes
- C. alkynes
- D. all the above.
|
| 3 |
The process which convert vegetable oil into banaspati ghee called. |
- A. Hydrogenation
- B. Halogenation
- C. a and b
- D. None of these
|
| 4 |
Marsh gas is mostly : |
- A. ethane
- B. methane
- C. butane
- D. propane
|
| 5 |
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>
|
| 6 |
Which gas in produced during ripening of bnabanas. |
- A. Methane
- B. Ethene
- C. Acetylene
- D. Carbon dioxide
|
| 7 |
Volatility of hydrocarbons deceases with: |
- A. decrease of molecular mass
- B. increase of molecular mass
- C. increase of double or triple bonds
- D. decrease of triple bonds
|
| 8 |
Which is the substitution reaction in the following? |
- A. Halogenation of alkenes
- B. Halogenation of alkynes
- C. Bromination of alkene
- D. Halogenation of alkanes
|
| 9 |
Incomplete combustion of alkanes produce. |
- A. Carbon dixoide only
- B. Carbon monoxide only
- C. Carbon monoxide carbon black and water
- D. Carbon dioxide and carbon black
|
| 10 |
The molecular formula of the first three members of the alkane hydrocarbons are CH<sub>4,</sub>C<sub>2</sub>H<sub>6</sub> and C<sub>3</sub>H<sub>8</sub>. What is the molecular formula for the eight alkane member, octane, which is found is petrol? |
- A. C<sub>8</sub>H<sub>8</sub>
- B. C<sub>8</sub>H<sub>16</sub>
- C. C<sub>8</sub>H<sub>18</sub>
- D. C<sub>8</sub>H<sub>20</sub>
|
