Hydrocarbons
Question
Question 1 : A dibromo derivative of an alkane reacts with sodium metal to form an alicyclic hydrocarbon. The derivative is ______.
1. 1, 4-dibromobutane
2. 2, 2-dibromobutane
3. 1, 2-dibromoethane
4. None of these
Answer
Correct Anaswer : 1
Explanation:
1, 4-dibromobutane
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Question 2 : The position of double bond in alkenes can be located by _____________
1. Photolysis
2. Hydration
3. Hydrogenation of oil
4. Ozonolysis
Answer
Correct Anaswer : 1
Explanation:
Ozonolysis
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Question 3 : Nitrobenzene on reaction with conc. HNO3/H2SO4 at 80 – 100°C forms which one of the following products?
1.
1, 3-Dinitrobenzene
2.
1, 2-Dinitrobenzene
3.
1, 4-Dinitrobenzene
4. None of these
Answer
Correct Anaswer : 1
Explanation:
1, 3-Dinitrobenzene
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Question 4 : Meta-directing substituents in aromatic substitution are given. Which one is most deactivating?
1.
-NO2
2.
-COOH
3.
-SO3H
4.
–C ≡ N
Answer
Correct Anaswer : 1
Explanation:
-NO2
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Question 5 : Which of the following compounds will exhibit geometrical isomerism?
1.
3 – Phenyl – 1 – butene
2.
2 – Phenyl – 1 butene
3.
1, 1 – Diphenyl – propene .
4.
1 – Phenyl – 2 – butene
Answer
Correct Anaswer : 4
Explanation:
1 – Phenyl – 2 – butene
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