| 1 |
The general formula of alkane is |
- A. C<sub>n</sub>H<sub>2n+2</sub>
- B. C<sub>n</sub>H<sub>2n-2</sub>
- C. C<sub>n</sub>H<sub>2n</sub>
- D. C<sub>n</sub>H<sub>2n+1</sub>
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| 2 |
The strong heating of coal in the absence of air called. |
- A. Fractional Distilation
- B. Destructive Distiation
- C. Carbonization
- D. Catenation
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| 3 |
General formula of Alkynes is. |
- A. C<sub>6</sub>H<sub>2n-2</sub>
- B. C<sub>n</sub>H<sub>2n+2</sub>
- C. C<sub>11</sub>H<sub>2n-2</sub>
- D. C<sub>n</sub>H<sub>2n-2</sub>
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| 4 |
The strong heating of coal in the absence of air is called. |
- A. Carbonization
- B. Destructive distillation
- C. Fractional distillation
- D. All
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| 5 |
Formula of acetaldehyde is: |
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| 6 |
The % age of carbon is bituminous is |
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| 7 |
Which of the following statement s is not true about fossil fuels? |
- A. they all contain carbon
- B. They are renewable
- C. they produce pollutants when burnt
- D. they cause acid rain
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| 8 |
What one of the following does not contain protein? |
- A. Pulses
- B. Potatoes
- C. Beans
- D. Eggs
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| 9 |
The black residue of the coal tar is called: |
- A. peat
- B. lignite
- C. pitch
- D. matte
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| 10 |
Which of the following is the hardest coal? |
- A. Pear
- B. Lignite
- C. Bituminous
- D. Anthracite
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