Entry Test MCQ :: Aliphatic Hydrocarbons
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| 11. |
R-Mg-Br is called |
| A. |
Grignard reagent |
B. |
Metallic alkyl halide |
| C. |
Both a & b |
D. |
Alkyl |
Answer: Option C
Explanation:
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| 12. |
Upto ______ C atoms alkanes are gases |
Answer: Option C
Explanation:
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| 13. |
Which of the following is the most reactive |
| A. |
ethane |
B. |
ethyne |
| C. |
ethene |
D. |
benzene |
Answer: Option C
Explanation:
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| 14. |
Incomplete oxidation of methane in the limited supply of air forms. |
| A. |
CO2 and H2O |
B. |
CH3OH |
| C. |
CO + H2 + C |
D. |
CO + H2O + C |
Answer: Option B
Explanation:
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| 15. |
Introduction of nitro group in a molecule is called |
| A. |
nitration |
B. |
halogenation |
| C. |
sulphonation |
D. |
amination |
Answer: Option A
Explanation:
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| 16. |
Order of ease of halogenation in alkane is |
| A. |
I2>Cl2>Br2>F2 |
B. |
F2>Cl2>I2>Br2 |
| C. |
F2>Cl2>Br2>I2 |
D. |
Cl2>F2>Br2>I2 |
Answer: Option C
Explanation:
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| 17. |
The gas used in manufacturing of urea fertilizer |
Answer: Option D
Explanation:
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| 18. |
General formula of alkyne is |
| A. |
CnH2n + 2 |
B. |
CnH2n - 2 |
| C. |
CnH2n |
D. |
CnH2n + 2 |
Answer: Option B
Explanation:
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| 19. |
Which of the following will be acidic |
| A. |
propyne |
B. |
1-butyne |
| C. |
ethyne |
D. |
all of the above |
Answer: Option D
Explanation:
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| 20. |
Removal of halogen and hydrogen atom is |
| A. |
halogenation |
B. |
dehalogenation |
| C. |
dehydrohalogenation |
D. |
hydrohalogenation |
Answer: Option C
Explanation:
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