27929
Which of these do not contain \( - COOH\) group
1 Aspirin
2 Benzoic acid
3 Picric acid
4 Salicylic acid
Explanation:
(c)
ALDEHYDES, KETONES AND CARBOXYLIC ACID
27930
Vinegar obtained from sugarcane has
1 \(C{H_3}COOH\)
2 \(HCOOH\)
3 \({C_6}{H_5}COOH\)
4 \(C{H_3}C{H_2}COOH\)
Explanation:
(a)Acetic acid is the chief constituent of vinegar and hence its name (Latin : acetum = vinegar).
ALDEHYDES, KETONES AND CARBOXYLIC ACID
27931
Carbolic acid is
1 \({C_6}{H_5}CHO\)
2 \({C_6}{H_6}\)
3 \({C_6}{H_5}COOH\)
4 \({C_6}{H_5}OH\)
Explanation:
Phenol was discovered by Runge in the middle oil fraction of coal-tar distillation and named it ‘carbolic acid’ (carbo-coil, oleum $=$ oil) or phenol containing \(5\%\) water in liquid at room temperature and it is termed as carbolic acid.
ALDEHYDES, KETONES AND CARBOXYLIC ACID
27932
The most acidic of the following is
1 \(ClC{H_2}COOH\)
2 \({C_6}{H_5}COOH\)
3 \(C{D_3}COOH\)
4 \(C{H_3}C{H_2}COOH\)
Explanation:
(a) Any electron withdrawing substituent (having\(-I-\)effect) stabilises the anion by dispersing the negative charge and therefore, increases the acidity. Chlorine is an electron withdrawing group.
27929
Which of these do not contain \( - COOH\) group
1 Aspirin
2 Benzoic acid
3 Picric acid
4 Salicylic acid
Explanation:
(c)
ALDEHYDES, KETONES AND CARBOXYLIC ACID
27930
Vinegar obtained from sugarcane has
1 \(C{H_3}COOH\)
2 \(HCOOH\)
3 \({C_6}{H_5}COOH\)
4 \(C{H_3}C{H_2}COOH\)
Explanation:
(a)Acetic acid is the chief constituent of vinegar and hence its name (Latin : acetum = vinegar).
ALDEHYDES, KETONES AND CARBOXYLIC ACID
27931
Carbolic acid is
1 \({C_6}{H_5}CHO\)
2 \({C_6}{H_6}\)
3 \({C_6}{H_5}COOH\)
4 \({C_6}{H_5}OH\)
Explanation:
Phenol was discovered by Runge in the middle oil fraction of coal-tar distillation and named it ‘carbolic acid’ (carbo-coil, oleum $=$ oil) or phenol containing \(5\%\) water in liquid at room temperature and it is termed as carbolic acid.
ALDEHYDES, KETONES AND CARBOXYLIC ACID
27932
The most acidic of the following is
1 \(ClC{H_2}COOH\)
2 \({C_6}{H_5}COOH\)
3 \(C{D_3}COOH\)
4 \(C{H_3}C{H_2}COOH\)
Explanation:
(a) Any electron withdrawing substituent (having\(-I-\)effect) stabilises the anion by dispersing the negative charge and therefore, increases the acidity. Chlorine is an electron withdrawing group.
27929
Which of these do not contain \( - COOH\) group
1 Aspirin
2 Benzoic acid
3 Picric acid
4 Salicylic acid
Explanation:
(c)
ALDEHYDES, KETONES AND CARBOXYLIC ACID
27930
Vinegar obtained from sugarcane has
1 \(C{H_3}COOH\)
2 \(HCOOH\)
3 \({C_6}{H_5}COOH\)
4 \(C{H_3}C{H_2}COOH\)
Explanation:
(a)Acetic acid is the chief constituent of vinegar and hence its name (Latin : acetum = vinegar).
ALDEHYDES, KETONES AND CARBOXYLIC ACID
27931
Carbolic acid is
1 \({C_6}{H_5}CHO\)
2 \({C_6}{H_6}\)
3 \({C_6}{H_5}COOH\)
4 \({C_6}{H_5}OH\)
Explanation:
Phenol was discovered by Runge in the middle oil fraction of coal-tar distillation and named it ‘carbolic acid’ (carbo-coil, oleum $=$ oil) or phenol containing \(5\%\) water in liquid at room temperature and it is termed as carbolic acid.
ALDEHYDES, KETONES AND CARBOXYLIC ACID
27932
The most acidic of the following is
1 \(ClC{H_2}COOH\)
2 \({C_6}{H_5}COOH\)
3 \(C{D_3}COOH\)
4 \(C{H_3}C{H_2}COOH\)
Explanation:
(a) Any electron withdrawing substituent (having\(-I-\)effect) stabilises the anion by dispersing the negative charge and therefore, increases the acidity. Chlorine is an electron withdrawing group.
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ALDEHYDES, KETONES AND CARBOXYLIC ACID
27929
Which of these do not contain \( - COOH\) group
1 Aspirin
2 Benzoic acid
3 Picric acid
4 Salicylic acid
Explanation:
(c)
ALDEHYDES, KETONES AND CARBOXYLIC ACID
27930
Vinegar obtained from sugarcane has
1 \(C{H_3}COOH\)
2 \(HCOOH\)
3 \({C_6}{H_5}COOH\)
4 \(C{H_3}C{H_2}COOH\)
Explanation:
(a)Acetic acid is the chief constituent of vinegar and hence its name (Latin : acetum = vinegar).
ALDEHYDES, KETONES AND CARBOXYLIC ACID
27931
Carbolic acid is
1 \({C_6}{H_5}CHO\)
2 \({C_6}{H_6}\)
3 \({C_6}{H_5}COOH\)
4 \({C_6}{H_5}OH\)
Explanation:
Phenol was discovered by Runge in the middle oil fraction of coal-tar distillation and named it ‘carbolic acid’ (carbo-coil, oleum $=$ oil) or phenol containing \(5\%\) water in liquid at room temperature and it is termed as carbolic acid.
ALDEHYDES, KETONES AND CARBOXYLIC ACID
27932
The most acidic of the following is
1 \(ClC{H_2}COOH\)
2 \({C_6}{H_5}COOH\)
3 \(C{D_3}COOH\)
4 \(C{H_3}C{H_2}COOH\)
Explanation:
(a) Any electron withdrawing substituent (having\(-I-\)effect) stabilises the anion by dispersing the negative charge and therefore, increases the acidity. Chlorine is an electron withdrawing group.
