| 1 |
Main component of natural gas is |
- A. Methane
- B. Propane
- C. Butane
- D. Propene
|
| 2 |
Formula of acetaldehyde is: |
|
| 3 |
Which one of the following compounds is an aldehyde? |
- A. CH<sub>3</sub>-CH<sub>2</sub>-OH
- B. CH<sub>3</sub>-COOH
- C. CH<sub>3</sub>CHO
- D. CH<sub>3</sub>COCH<sub>3</sub>
|
| 4 |
The % age of carbon in coke is |
|
| 5 |
Which one of the followoing is the Hardest coal. |
- A. Peat
- B. Lignite
- C. Bituminous
- D. Anthracite
|
| 6 |
Which one contains double covalent bound? |
- A. Pentane
- B. Ethylene
- C. Acetylene
- D. All
|
| 7 |
The coal in which the percentage of carbon is 60% |
- A. Peat
- B. Lignite
- C. Bituminous
- D. Anthracit
|
| 8 |
Formula of Methyl alcohol |
- A. CH<sub>5</sub>-OH
- B. CH<sub>3</sub>-CH<sub>2</sub>-OH
- C. All of them
- D. None of these
|
| 9 |
Which one of the following is a synthetic fibre? |
- A. Cotton
- B. Wool
- C. nylon
- D. silk
|
| 10 |
Silicon occurs in the form of |
- A. Silica
- B. Silicates
- C. both a and b
- D. None of these
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