| 1 |
Traces of acetylene are present to coal gas about. |
- A. 0.06 %
- B. 0.08%
- C. 1.1 %
- D. 90%
|
| 2 |
Which of one of the following is used as as fumigant: |
- A. Ethyl alcohol
- B. ethylene oxide
- C. ethylene glycol
- D. diethyl ether
|
| 3 |
The end product of oxidation of acetylene is. |
- A. Propen glycol
- B. Ethan glycol
- C. Glyoxal
- D. Oxalic acid
|
| 4 |
Alkanes are least reactive compounds because they are. |
- A. Saturated hydrocarbons.
- B. Unsaturated hydrocarbons.
- C. Both a and b
- D. None of the above.
|
| 5 |
Which gas in produced during ripening of bnabanas. |
- A. Methane
- B. Ethene
- C. Acetylene
- D. Carbon dioxide
|
| 6 |
____________ use for ripening of fruits. |
- A. Ethene
- B. Ethane
- C. Ethyne
- D. Propane
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| 7 |
Dichloromethane reacts with halogens in the presence of diffused sun light and produces |
- A. Carbon tetrachloride
- B. Chloroform
- C. Chloromethane
- D. No reaction
|
| 8 |
Ethen is prepared by heating a mixture of ethanol and excess of concentrated sulphuric acid at: |
- A. 150°C
- B. 180°C
- C. 250°C - 300°C
- D. 400°C - 450°C
|
| 9 |
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>
|
| 10 |
Oxidation of alkenes forms: |
- A. Glycol
- B. Glyoxal
- C. Formic acid
- D. Oxalic acid
|