Acetylene and HCHO reaction to the presence of copper acetylide catalyst to form
1. 2-Butyne-1,4-diol
2. But-2-yne-1,2-diol
3. But-1-yne-1,4-diol
4. None of these
Which of the following compounds with molecular formula, C5H10 yields acetone on ozonolysis?
1. 2-methyl-2-butene
2. 3-methyl-1-butene
3. Cyclopentane
4. 2-methyl-1-butene
Among acetic acid, phenol and n-hexanol which one of the following compound will react with NaHCO3 solution to give sodium salt and CO2?
1. Acetic acid
2. n-hexanol
3. Acetic acid and phenol
4. Phenol
The reagent used for the separation of acetaldehyde from acetophenone is-
1. NaHSO3
2. C6H5NHNH2
3. NH2OH
4. NaOH and I2
Iodoform test is not given by
1. 2-pentanone
2. ethanol
3. ethanal
4. 3-pentanone
Two isomeric ketones 3-Pentanones and 2-pentanone can be distinguished by
1. I2/NaOH only
2. NaHSO3 only
3. NaCN/HCl
4. both of (a) and (b)
Products of the following reaction
CH3CC-CH2CH3 ... are
1. CH3CHO + CH3CH2CHO
2. CH3COOH + CH3COCH3
3. CH3COOH + HOOC-CH2CH3
4. CH3COOH + CO2
Which alkene on ozonolysis gives CH3CH2CHO and CH3COCH3?
1. CH3CH2CH=C
2. CH3CH2CH=CHCH2CH3
3. CH3CH2CH=CHCH3
4.
Which one of the following on oxidation gives a ketone?
1. primary alcohol
2. secondary alcohol
3. tertiary alcohol
4. All of these
A carbonyl compound reacts with hydrogen cyanide to form cyanohydrin which on hydrolysis forms a racemic mixture of -hydroxy acid. The carbonyl compound is
1. acetaldehyde
2. acetone
3. diethyl ketone
4. formaldehyde