A compound having the shortest carbon-carbon bond length among the following is :
1. Benzene
2. Ethene
3. Ethyne
4. Ethane
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The most suitable reagent among the following that is used to distinguish compound (III) from the rest of the compounds is -
I.
II.
III.
IV.
1. | Br2/CCl4 | 2. | Br2/CH3COOH |
3. | Alk.KMnO4 | 4. | Ammoniacal AgNO3 |
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The reaction,
+ + HCl
is an example of:
1. Friedel-Crafts reaction
2. Kolbe's synthesis
3. Wurtz's reaction
4. Grignard synthesis
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2-Methylpropene and But-1-ene can be distinguished by :
1. Baeyer's reagent
2. Ammoniacal
3. solution
4. ,
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Xylene, on oxidation with acidic , gives:
1. | Phthalic acid | 2. | Isophthalic acid |
3. | Terephthalic acid | 4. | All of the above |
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RCOCl and are used in the Friedel-Crafts reaction.
The electrophile among the following is:
1.
2. RCOCl
3. O
4.
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3-Hexyne can be converted to trans-3-Hexene by the action of:
1. - Pd/
2. Li-Liq.
3. - Pt
4.
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Nitrobenzene on reaction with conc. HNO3/H2SO4 at 80-100C forms -
1. 1,2-Dinitrobenzene
2. 1,3-Dinitrobenzene
3. 1,4-Dinitrobenzene
4. 1,2,4-Trinitrobenzene
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The D in the above-mentioned reaction is -
1. | 2. | ||
3. | 4. |
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The reactants used in Friedel-Craft's alkylation are:
1. C6H6 + NH2
2. C6H6 + CH4
3. C6H6 + CH3Cl
4. C6H6 + CH3COCl
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