| 1 |
Which hydrocarbon decolorizes the pink colour of acidic solution of potassium permanganate? |
- A. CH<sub>4</sub>
- B. C<sub>2</sub>H<sub>4</sub>
- C. C<sub>2</sub>H<sub>6</sub>
- D. C<sub>2</sub>H<sub>5</sub>
|
| 2 |
How trace amount of acetylene present in the coat gas. |
- A. 0.06%
- B. 0.07%
- C. 0.08%
- D. 0.09%
|
| 3 |
Alkanes do not react in |
- A. Diffused sunlight
- B. Dark
- C. Bright sunlight
- D. None of these
|
| 4 |
Incomplete combustion of alkanes produces. |
- A. Carbon dioxide only
- B. Carbon monoxide only
- C. Carbon monoxide and carbon black
- D. Carbon dioxide and carbon black
|
| 5 |
In which one of the following is a substitution reaction? |
- A. Halogenations of alkynes
- B. Halogenations of alkenes
- C. Halogenations of alkanes
- D. Bromination of alkenes
|
| 6 |
Oxidation of ethene with KMnO<sub>4</sub>produces. |
- A. oxalic acid
- B. glyoxal
- C. ethene glycol
- D. Propene glycol
|
| 7 |
Which gas creates suffocation and causes death? |
- A. CO
- B. CO<sub>2</sub>
- C. SO<sub>3</sub>
- D. SO<sub>2</sub>
|
| 8 |
The end product of oxidation of acetylene is. |
- A. Propen glycol
- B. Ethan glycol
- C. Glyoxal
- D. Oxalic acid
|
| 9 |
Which gas in produced during ripening of bnabanas. |
- A. Methane
- B. Ethene
- C. Acetylene
- D. Carbon dioxide
|
| 10 |
Which is present 85% in natural gas? |
- A. Ethane
- B. Propane
- C. Methane
- D. Butane
|