27973
When succinic acid is heated, product formed is
1 Succinic anhydride
2 Acetic acid
3 \(C{O_2}\) and methane
4 Propionic acid
Explanation:
(a)When succinic acid is heated it forms. Succinic anhydride
ALDEHYDES, KETONES AND CARBOXYLIC ACID
27974
In the reaction, the compound \(C\) is\({{C}_{6}}{{H}_{5}}OH\xrightarrow{NaOH}(A)\) \(\mathop {\xrightarrow{{\;C{O_2}\;\;\;\;\;\;\;\;\;\;\;\;}}}\limits_{140\,^oC,\;(4 - 7\,)} (B)\) \(\xrightarrow{{HCl}}(C),\)
1 Benzoic acid
2 Salicylaldehyde
3 Chlorobenzene
4 Salicylic acid
Explanation:
d)Treatment of sodium salt of phenol with \(C{O_2}\) under pressure bring about substitution of the carbonyl group \( - COOH,\) for the hydrogen of the ring. This is called as Kolbe’s reaction
ALDEHYDES, KETONES AND CARBOXYLIC ACID
27975
When an acyl chloride is heated with \(Na\) salt of a carboxylic acid, the product is
1 An ester
2 An anhydride
3 An alkene
4 An aldehyde
Explanation:
(b)When an acyl halide is heated with acid salt, anhydrides are formed \(C{H_3}COONa + C{H_3}COCl\xrightarrow{\Delta }\mathop {{{(C{H_3}CO)}_2}O}\limits_{\,} \) \( + \;NaCl\)
ALDEHYDES, KETONES AND CARBOXYLIC ACID
27976
The compound \(X,\) in the reaction, is \( X\xrightarrow{{C{H_3}MgI}}Y\xrightarrow{{hydrolysis}}Mg(OH)I + C{H_3}COOH\)
1 \(C{H_3}CHO\)
2 \(C{O_2}\)
3 \({(C{H_3})_2}CO\)
4 \(HCHO\)
Explanation:
(b)\(C{O_2}\) adds to Grignard’s reagent to yield acids. \(C{O_2}\xrightarrow{{C{H_3}Mg\,I}}C{H_3}COOMg\,I\xrightarrow{{H.\;OH}}C{H_3}COOH\,\, + \) $Mg\, < \begin{array}{*{20}{c}} {OH} \\ I \end{array}$
27973
When succinic acid is heated, product formed is
1 Succinic anhydride
2 Acetic acid
3 \(C{O_2}\) and methane
4 Propionic acid
Explanation:
(a)When succinic acid is heated it forms. Succinic anhydride
ALDEHYDES, KETONES AND CARBOXYLIC ACID
27974
In the reaction, the compound \(C\) is\({{C}_{6}}{{H}_{5}}OH\xrightarrow{NaOH}(A)\) \(\mathop {\xrightarrow{{\;C{O_2}\;\;\;\;\;\;\;\;\;\;\;\;}}}\limits_{140\,^oC,\;(4 - 7\,)} (B)\) \(\xrightarrow{{HCl}}(C),\)
1 Benzoic acid
2 Salicylaldehyde
3 Chlorobenzene
4 Salicylic acid
Explanation:
d)Treatment of sodium salt of phenol with \(C{O_2}\) under pressure bring about substitution of the carbonyl group \( - COOH,\) for the hydrogen of the ring. This is called as Kolbe’s reaction
ALDEHYDES, KETONES AND CARBOXYLIC ACID
27975
When an acyl chloride is heated with \(Na\) salt of a carboxylic acid, the product is
1 An ester
2 An anhydride
3 An alkene
4 An aldehyde
Explanation:
(b)When an acyl halide is heated with acid salt, anhydrides are formed \(C{H_3}COONa + C{H_3}COCl\xrightarrow{\Delta }\mathop {{{(C{H_3}CO)}_2}O}\limits_{\,} \) \( + \;NaCl\)
ALDEHYDES, KETONES AND CARBOXYLIC ACID
27976
The compound \(X,\) in the reaction, is \( X\xrightarrow{{C{H_3}MgI}}Y\xrightarrow{{hydrolysis}}Mg(OH)I + C{H_3}COOH\)
1 \(C{H_3}CHO\)
2 \(C{O_2}\)
3 \({(C{H_3})_2}CO\)
4 \(HCHO\)
Explanation:
(b)\(C{O_2}\) adds to Grignard’s reagent to yield acids. \(C{O_2}\xrightarrow{{C{H_3}Mg\,I}}C{H_3}COOMg\,I\xrightarrow{{H.\;OH}}C{H_3}COOH\,\, + \) $Mg\, < \begin{array}{*{20}{c}} {OH} \\ I \end{array}$
27973
When succinic acid is heated, product formed is
1 Succinic anhydride
2 Acetic acid
3 \(C{O_2}\) and methane
4 Propionic acid
Explanation:
(a)When succinic acid is heated it forms. Succinic anhydride
ALDEHYDES, KETONES AND CARBOXYLIC ACID
27974
In the reaction, the compound \(C\) is\({{C}_{6}}{{H}_{5}}OH\xrightarrow{NaOH}(A)\) \(\mathop {\xrightarrow{{\;C{O_2}\;\;\;\;\;\;\;\;\;\;\;\;}}}\limits_{140\,^oC,\;(4 - 7\,)} (B)\) \(\xrightarrow{{HCl}}(C),\)
1 Benzoic acid
2 Salicylaldehyde
3 Chlorobenzene
4 Salicylic acid
Explanation:
d)Treatment of sodium salt of phenol with \(C{O_2}\) under pressure bring about substitution of the carbonyl group \( - COOH,\) for the hydrogen of the ring. This is called as Kolbe’s reaction
ALDEHYDES, KETONES AND CARBOXYLIC ACID
27975
When an acyl chloride is heated with \(Na\) salt of a carboxylic acid, the product is
1 An ester
2 An anhydride
3 An alkene
4 An aldehyde
Explanation:
(b)When an acyl halide is heated with acid salt, anhydrides are formed \(C{H_3}COONa + C{H_3}COCl\xrightarrow{\Delta }\mathop {{{(C{H_3}CO)}_2}O}\limits_{\,} \) \( + \;NaCl\)
ALDEHYDES, KETONES AND CARBOXYLIC ACID
27976
The compound \(X,\) in the reaction, is \( X\xrightarrow{{C{H_3}MgI}}Y\xrightarrow{{hydrolysis}}Mg(OH)I + C{H_3}COOH\)
1 \(C{H_3}CHO\)
2 \(C{O_2}\)
3 \({(C{H_3})_2}CO\)
4 \(HCHO\)
Explanation:
(b)\(C{O_2}\) adds to Grignard’s reagent to yield acids. \(C{O_2}\xrightarrow{{C{H_3}Mg\,I}}C{H_3}COOMg\,I\xrightarrow{{H.\;OH}}C{H_3}COOH\,\, + \) $Mg\, < \begin{array}{*{20}{c}} {OH} \\ I \end{array}$
27973
When succinic acid is heated, product formed is
1 Succinic anhydride
2 Acetic acid
3 \(C{O_2}\) and methane
4 Propionic acid
Explanation:
(a)When succinic acid is heated it forms. Succinic anhydride
ALDEHYDES, KETONES AND CARBOXYLIC ACID
27974
In the reaction, the compound \(C\) is\({{C}_{6}}{{H}_{5}}OH\xrightarrow{NaOH}(A)\) \(\mathop {\xrightarrow{{\;C{O_2}\;\;\;\;\;\;\;\;\;\;\;\;}}}\limits_{140\,^oC,\;(4 - 7\,)} (B)\) \(\xrightarrow{{HCl}}(C),\)
1 Benzoic acid
2 Salicylaldehyde
3 Chlorobenzene
4 Salicylic acid
Explanation:
d)Treatment of sodium salt of phenol with \(C{O_2}\) under pressure bring about substitution of the carbonyl group \( - COOH,\) for the hydrogen of the ring. This is called as Kolbe’s reaction
ALDEHYDES, KETONES AND CARBOXYLIC ACID
27975
When an acyl chloride is heated with \(Na\) salt of a carboxylic acid, the product is
1 An ester
2 An anhydride
3 An alkene
4 An aldehyde
Explanation:
(b)When an acyl halide is heated with acid salt, anhydrides are formed \(C{H_3}COONa + C{H_3}COCl\xrightarrow{\Delta }\mathop {{{(C{H_3}CO)}_2}O}\limits_{\,} \) \( + \;NaCl\)
ALDEHYDES, KETONES AND CARBOXYLIC ACID
27976
The compound \(X,\) in the reaction, is \( X\xrightarrow{{C{H_3}MgI}}Y\xrightarrow{{hydrolysis}}Mg(OH)I + C{H_3}COOH\)
1 \(C{H_3}CHO\)
2 \(C{O_2}\)
3 \({(C{H_3})_2}CO\)
4 \(HCHO\)
Explanation:
(b)\(C{O_2}\) adds to Grignard’s reagent to yield acids. \(C{O_2}\xrightarrow{{C{H_3}Mg\,I}}C{H_3}COOMg\,I\xrightarrow{{H.\;OH}}C{H_3}COOH\,\, + \) $Mg\, < \begin{array}{*{20}{c}} {OH} \\ I \end{array}$
