Acetaldehyde reacts with semicarbazide to yield the following as a product:
1. | \( {CH_3CH=NHNH_2} ~\) |
2. | \({CH_3CH=NCONHNH_2}~~~\) |
3. | \({CH_3CH=NNH-CO-NH_2}~~~~~\) |
4. |
Cyanohydrin of which of the following compounds on hydrolysis gives an optically active product:
1. HCHO
2.
3.
4. All of the above
Which one among the given options, can be oxidized to produce a carbonyl compound?
1. o-Nitrophenol
2. Aniline
3. 2-Methyl-2-hydroxypropane
4. 2-Hydroxy propane
Clemmensen reduction reaction is:
1. | |
2. | \(C_6H_5-CO-CH_3 + NH_2NH_2 \xrightarrow{C_2H_5ONa}\\ C_6H_5CH_2CH_3\) |
3. | \(CH_3COCH_3 + 4HI \xrightarrow{\text{Red. P}} CH_3CH_2CH_3\) |
4. | All of the above |
The product P is:
1. | 2. | ||
3. | 4. |
In the following reaction, product 'P' is:
1. RCH2OH
2. RCOOH
3. RCHO
4. RCH3
Product 'P' in the above reaction is:
1. | 2. | ||
3. | 4. |
Intermediates formed during the reaction of
with and KOH are:
1. RNHCOBr and RNCO
2. RCONHBr and RNCO
3. RNH-Br and RCONHBr
4. RCON
\(CH_3CHO+HCN\rightarrow CH_3CH(OH)CN\\ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\downarrow{\bf{H.OH}}\\ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~CH_3CH(OH)COOH~\)
1. 100 % R-isomer
2. 100% S-isomer
3. 50% R + 50% S-isomer
4. 20% R + 80% S-isomer
In a set of the given reactions, acetic acid yielded a product C.
\(\mathrm{CH_3COOH+PCl_5\rightarrow A\xrightarrow[Anh.AlCl_3]{C_6H_6}B\xrightarrow[ether]{C_2H_5MgBr}C}\)
Product C would be:
1. | CH3CH(OH)C2H5 |
2. | CH3COC6H5 |
3. | CH3CH(OH)C6H5 |
4. |