27971
Which reaction is used for the preparation of \(\alpha - \) Bromoacetic acid ?
1 Kolbe’s Reaction
2 Reimer-Tiemann Reaction
3 Hell volhard Zelinsky Reaction
4 Perkin’s Reation
Explanation:
(c)When \(C{l_2}\) or \(B{r_2}\) is react with carboxylic acid in the presence of red phosphorus then \(\alpha\)-hydrogen of carboxylic acid is replaced by \(C{l_2}\) or \(B{r_2}\) \(\mathop {C{H_3}COOH}\limits_{Acetic\;acid} \xrightarrow{{B{r_2}}}\mathop {C{H_2}BrCOOH}\limits_{\alpha - bromo\;acetic\;acid} \) This reaction is known as Hell Volhard Zelinsky reaction.
ALDEHYDES, KETONES AND CARBOXYLIC ACID
27972
Tertiary alcohols \((3^\circ )\) having atleast four carbon atoms upon drastic oxidation yield carboxylic acid with
1 One carbon atom less
2 Two carbon atoms less
3 Three carbon atom less
4 All the above three options are correct
Explanation:
(b)Tertiary alcohol are not oxidised easily but on drastic conditions, these oxidise to give first ketone and then acid by losing one carbon at each step
27971
Which reaction is used for the preparation of \(\alpha - \) Bromoacetic acid ?
1 Kolbe’s Reaction
2 Reimer-Tiemann Reaction
3 Hell volhard Zelinsky Reaction
4 Perkin’s Reation
Explanation:
(c)When \(C{l_2}\) or \(B{r_2}\) is react with carboxylic acid in the presence of red phosphorus then \(\alpha\)-hydrogen of carboxylic acid is replaced by \(C{l_2}\) or \(B{r_2}\) \(\mathop {C{H_3}COOH}\limits_{Acetic\;acid} \xrightarrow{{B{r_2}}}\mathop {C{H_2}BrCOOH}\limits_{\alpha - bromo\;acetic\;acid} \) This reaction is known as Hell Volhard Zelinsky reaction.
ALDEHYDES, KETONES AND CARBOXYLIC ACID
27972
Tertiary alcohols \((3^\circ )\) having atleast four carbon atoms upon drastic oxidation yield carboxylic acid with
1 One carbon atom less
2 Two carbon atoms less
3 Three carbon atom less
4 All the above three options are correct
Explanation:
(b)Tertiary alcohol are not oxidised easily but on drastic conditions, these oxidise to give first ketone and then acid by losing one carbon at each step
27971
Which reaction is used for the preparation of \(\alpha - \) Bromoacetic acid ?
1 Kolbe’s Reaction
2 Reimer-Tiemann Reaction
3 Hell volhard Zelinsky Reaction
4 Perkin’s Reation
Explanation:
(c)When \(C{l_2}\) or \(B{r_2}\) is react with carboxylic acid in the presence of red phosphorus then \(\alpha\)-hydrogen of carboxylic acid is replaced by \(C{l_2}\) or \(B{r_2}\) \(\mathop {C{H_3}COOH}\limits_{Acetic\;acid} \xrightarrow{{B{r_2}}}\mathop {C{H_2}BrCOOH}\limits_{\alpha - bromo\;acetic\;acid} \) This reaction is known as Hell Volhard Zelinsky reaction.
ALDEHYDES, KETONES AND CARBOXYLIC ACID
27972
Tertiary alcohols \((3^\circ )\) having atleast four carbon atoms upon drastic oxidation yield carboxylic acid with
1 One carbon atom less
2 Two carbon atoms less
3 Three carbon atom less
4 All the above three options are correct
Explanation:
(b)Tertiary alcohol are not oxidised easily but on drastic conditions, these oxidise to give first ketone and then acid by losing one carbon at each step
27971
Which reaction is used for the preparation of \(\alpha - \) Bromoacetic acid ?
1 Kolbe’s Reaction
2 Reimer-Tiemann Reaction
3 Hell volhard Zelinsky Reaction
4 Perkin’s Reation
Explanation:
(c)When \(C{l_2}\) or \(B{r_2}\) is react with carboxylic acid in the presence of red phosphorus then \(\alpha\)-hydrogen of carboxylic acid is replaced by \(C{l_2}\) or \(B{r_2}\) \(\mathop {C{H_3}COOH}\limits_{Acetic\;acid} \xrightarrow{{B{r_2}}}\mathop {C{H_2}BrCOOH}\limits_{\alpha - bromo\;acetic\;acid} \) This reaction is known as Hell Volhard Zelinsky reaction.
ALDEHYDES, KETONES AND CARBOXYLIC ACID
27972
Tertiary alcohols \((3^\circ )\) having atleast four carbon atoms upon drastic oxidation yield carboxylic acid with
1 One carbon atom less
2 Two carbon atoms less
3 Three carbon atom less
4 All the above three options are correct
Explanation:
(b)Tertiary alcohol are not oxidised easily but on drastic conditions, these oxidise to give first ketone and then acid by losing one carbon at each step
