What is the major product of the reaction between cyclohexanecarbaldehyde and Tollens' reagent?
1. | 2. | ||
3. | 4. | None of these |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPropanal and butanal can produce four different aldol condensation products. The possible structures are:
1. | |
2. | |
3. | Both (1) and (2) |
4. | None of these |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. Low electrophilicity in 2,2,6-trimethylcyclohexanone
2. Less steric crowd in 2,2,6-trimethylcyclohexanone
3. More steric crowd in 2,2,6-trimethylcyclohexanone
4. High electrophilicity in 2,2,6-trimethylcyclohexanone
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
(a) | Mg/ Dry ether |
(b) | Br2 / FeBr3 |
(c) | CO2 ; H3O+ |
(d) | HNO3 + H2SO4 |
1. | (a) | (b) | (c) | (d) |
2. | (b) | (a) | (c) | (d) |
3. | (c) | (b) | (a) | (d) |
4. | (d) | (b) | (a) | (c) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe correct sequence of reagents used for the preparation of Phenylacetic acid from benzene are :
1. | a= NBS, hv, and heat; b= CH3Cl/Anhyd.AlCl3; C= KMnO4+KOH; d=H3O+ |
2. | a= CH3Cl/Anhyd.AlCl3; b= KMnO4+KOH; C= NBS, hv, and heat; d=H3O+ |
3. | a= CH3Cl/Anhyd.AlCl3; b= NBS, hv, and heat; C= H3O+; d=KMnO4+KOH |
4. | a= CH3Cl/Anhyd.AlCl3; b= NBS, hv, and heat; C= alc.KCN; d=H |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe correct sequence of reagents used to yield p-Nitrobenzaldehyde from benzene is:
(a) | CH3Cl /Anhyd. AlCl3 |
(b) | HNO3 /H2SO4 |
(c) | CS2 / CrO2Cl2 |
(d) | H3O+ |
1. | (a) | (b) | (c) | (d) |
2. | (c) | (b) | (a) | (d) |
3. | (b) | (a) | (c) | (d) |
4. | (a) | (b) | (d) | (c) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyChemical test to distinguish between Pentan-2-one and Pentan-3-one is:
1. Tollen’s test
2. Fehling’s test
3. Iodoform test
4. Ferric chloride test
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology