For the following compounds, what is the correct increasing order of basic strength?
(I) | (II) | (III) |
1. III < I < II
2. III < II < I
3. II < I < III
4. II < III < I
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following reactions is appropriate for converting acetamide to methanamine?
1. Hoffmann hypobromamide reaction
2. Stephens reaction
3. Gabriels phthalimide synthesis
4. Carbylamine reaction
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyNitration of aniline in strong acidic medium also gives m-nitroaniline because:
1. | In spite of substituents nitro group always goes to only m-position |
2. | In electrophilic substitution reactions amino group is meta directive |
3. | In absence of substituents nitro group always goes to only m-position |
4. | In acidic (strong) medium aniline is present as anilinium ion |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA nitro-compound among the following that does not react with nitrous acid is:
1. | 2. | ||
3. | |
4. | |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA nitrogen-containing aromatic compound A reacts with Sn/HCl, followed by HNO2 to give an unstable compound B. On treatment with phenol, B forms a beautiful coloured compound C with the molecular formula C12H10N2O. The structure of compound A is:
1. | 2. | ||
3. | 4. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe correct statement regarding the basicity of arylamines is:
1. | Arylamines are generally more basic than alkylamines because the lone-pair electrons of nitrogen are not delocalized by interaction with the aromatic ring π-electron system. |
2. | Arylamines are generally more basic than alkylamines because of the aryl group +I effect. |
3. | Arylamines are generally more basic than alkylamines because the nitrogen atom in arylamines is sp-hybridized. |
4. | Arylamines are generally less basic than alkylamines because the nitrogen lone-pair electrons are delocalized by interaction with the aromatic ring π-electron system. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe number of structural isomers possible from the molecular formula C3H9N is
1. 4
2. 5
3. 2
4. 3
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAniline cannot be prepared by:
1. | Hydrolysis of phenyl isocyanide with an acidic solution |
2. | Degradation of benzamide with bromine in alkaline solution |
3. | Reduction of nitrobenzene with H2/Pd in ethanol |
4. | Treatment of Potassium salt of phthalimide with chlorobenzene followed by hydrolysis in an aqueous NaOH solution |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
What is the name of the following reaction?
1. Friedel-Crafts reaction
2. Perkins reaction
3. Acetylation reaction
4. Schotten-Baumann reaction
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe product (A) in the below mentioned
reaction is:
1. | 2. | ||
3. | 4. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology