Entry Test MCQ :: Aliphatic Hydrocarbons
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| 21. |
Alkenes are produced from dehalogenation of |
| A. |
dihalo alkane |
B. |
trihalo alkane |
| C. |
vicinal dihalo alkane |
D. |
vicinal trihalo alkane |
Answer: Option C
Explanation:
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| 22. |
Reactivity due to pi-electrons is present in |
| A. |
alkane |
B. |
alkene |
| C. |
alkyne |
D. |
both b & c |
Answer: Option D
Explanation:
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| 23. |
In unsaturated hydro carbons ?-electrons favour |
| A. |
less reactivity |
B. |
addition reactions |
| C. |
substitution reactions |
D. |
none |
Answer: Option B
Explanation:
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| 24. |
Raney nickel is prepared from __________ by treating with caustic soda |
| A. |
Ni-Cu alloy |
B. |
Ni-Fe alloy |
| C. |
Ni-Al alloy |
D. |
Ni-Mg alloy |
Answer: Option C
Explanation:
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| 25. |
Which one is Chloroform |
Answer: Option C
Explanation:
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| 26. |
Vinylacetylene combines with HCI to form |
| A. |
polyacetylene |
B. |
benzene |
| C. |
chloroprene |
D. |
divinyl acetylene |
Answer: Option C
Explanation:
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| 27. |
? ? -dichloroethyl sulphide is commonly known as |
| A. |
laughing gas |
B. |
bio-gas |
| C. |
mustard gas |
D. |
phosgene gas |
Answer: Option C
Explanation:
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| 28. |
Which is used for artificial ripening of fruit? |
| A. |
ethane |
B. |
ethene |
| C. |
ethyne |
D. |
methane |
Answer: Option B
Explanation:
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| 29. |
Preparation of vegetable ghee involves |
| A. |
halogenation |
B. |
hydroxylation |
| C. |
hydrogenation |
D. |
hydration |
Answer: Option C
Explanation:
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| 30. |
Which is methyl cyanide |
| A. |
CH3NH2 |
B. |
CH3NO2 |
| C. |
CH3CN |
D. |
CH2 = CH - CN |
Answer: Option C
Explanation:
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