| 1 |
The strone heating of coal in retorts in the absence of air is called. |
- A. Fractional distillation
- B. sublimation
- C. Roasting
- D. Destructive distillation
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| 2 |
General formula of alkyl radical is |
- A. C<sub>n</sub>H<sub>2n+2</sub>
- B. C<sub>n</sub>H<sub>2n-</sub><span style="vertical-align: sub;">2</span>
- C. C<sub>n</sub>H<sub>2n+1</sub>
- D. C<sub>n</sub>H<sub>2n</sub>
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| 3 |
The branch of chemistry which deals with the study of hydrocarbons and their derivatives is known as. |
- A. Organic chemistry
- B. Inorganic chemistry
- C. Biochemistry
- D. Nuclear chemistry
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| 4 |
General formula of Alkane is. |
- A. C<sub>10</sub>H<sub>2n-2</sub>
- B. C<sub>6</sub>H<sub>26</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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| 5 |
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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| 6 |
Silicon occurs in the form of |
- A. Silica
- B. Silicates
- C. both a and b
- D. None of these
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| 7 |
Which one of the following is not a fossil fuel? |
- A. Coal
- B. Natural gas
- C. Bio gas
- D. Petroleum
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| 8 |
Which one of the following does not contain starch |
- A. Sugar cane
- B. Maize
- C. Barley
- D. Potatoes
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| 9 |
The ability of carbon atoms to form chains is called. |
- A. Isomerism
- B. Catenation
- C. Resonance
- D. Condensation
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| 10 |
Vital force theory was rejected by. |
- A. Jabir Bin Hayan
- B. Drawin
- C. Wohler
- D. Berzellius
|