28277
Which of the following compounds gives carbondioxide with \(NaHCO_3\) ?
1 Acetic acid
2 Hexanol
3 Phenol
4 Acetylene
Explanation:
ALDEHYDES, KETONES AND CARBOXYLIC ACID
28278
When propanoic acid is treated with aqueous sodium bicarbonate, carbon dioxide is liberated. The carbon of the \(CO_2\) comes from :
1 Methyl group
2 Carboxylic group
3 Methylene group
4 Bicarbonate
Explanation:
When propionic acid is treated with aqueous sodium bicarbonate, \(CO _2\) is liberated. The \(C\) from \(CO _2\) comes from bicarbonate. \(CH _3 CH _2 COOH + NaHCO _3 \rightarrow CH _3 CH _2 COONa + H _2 O + CO _2 \uparrow\)
ALDEHYDES, KETONES AND CARBOXYLIC ACID
28279
The reduction of benzoyl chloride with \(Pd\) and \(BaSO_4/CaCO_3\) produces :
1 Benzyl chloride
2 Benzoic acid
3 Benzaldehyde
4 All of these
Explanation:
The reduction of benzoyl chloride with \(Pd\) and \(BaSO _4 / CaSO _3\) produces benzaldehyde. \(BaSO _4\) is poisoned with sulphur so that further reduction of benzaldehyde is prevented. This reaction is known as Rosenmund reaction. \(C _6 H _5 COCl + H _2 \stackrel{ pd/BaSO _4/ CaSO _3}{\longrightarrow} C _6 H _5 CHO + HCl\)
ALDEHYDES, KETONES AND CARBOXYLIC ACID
28280
Which one of the following esters cannot undergo self Claisen condensation ?
1 \(CH_3-CH_2-CH_2-COOC_2H_5\)
2 \(C_6H_5COOC_2H_5\)
3 \(C_6H_{11}-CH_2-COOC_2H_5\)
4 \(C_6H_5-CH_2COOC_2H_5\)
Explanation:
\(C _6 H _5 COOC _2 H _5\) cannot undergo self Claisen condensation as it do not has hydrogen atom.
28277
Which of the following compounds gives carbondioxide with \(NaHCO_3\) ?
1 Acetic acid
2 Hexanol
3 Phenol
4 Acetylene
Explanation:
ALDEHYDES, KETONES AND CARBOXYLIC ACID
28278
When propanoic acid is treated with aqueous sodium bicarbonate, carbon dioxide is liberated. The carbon of the \(CO_2\) comes from :
1 Methyl group
2 Carboxylic group
3 Methylene group
4 Bicarbonate
Explanation:
When propionic acid is treated with aqueous sodium bicarbonate, \(CO _2\) is liberated. The \(C\) from \(CO _2\) comes from bicarbonate. \(CH _3 CH _2 COOH + NaHCO _3 \rightarrow CH _3 CH _2 COONa + H _2 O + CO _2 \uparrow\)
ALDEHYDES, KETONES AND CARBOXYLIC ACID
28279
The reduction of benzoyl chloride with \(Pd\) and \(BaSO_4/CaCO_3\) produces :
1 Benzyl chloride
2 Benzoic acid
3 Benzaldehyde
4 All of these
Explanation:
The reduction of benzoyl chloride with \(Pd\) and \(BaSO _4 / CaSO _3\) produces benzaldehyde. \(BaSO _4\) is poisoned with sulphur so that further reduction of benzaldehyde is prevented. This reaction is known as Rosenmund reaction. \(C _6 H _5 COCl + H _2 \stackrel{ pd/BaSO _4/ CaSO _3}{\longrightarrow} C _6 H _5 CHO + HCl\)
ALDEHYDES, KETONES AND CARBOXYLIC ACID
28280
Which one of the following esters cannot undergo self Claisen condensation ?
1 \(CH_3-CH_2-CH_2-COOC_2H_5\)
2 \(C_6H_5COOC_2H_5\)
3 \(C_6H_{11}-CH_2-COOC_2H_5\)
4 \(C_6H_5-CH_2COOC_2H_5\)
Explanation:
\(C _6 H _5 COOC _2 H _5\) cannot undergo self Claisen condensation as it do not has hydrogen atom.
28277
Which of the following compounds gives carbondioxide with \(NaHCO_3\) ?
1 Acetic acid
2 Hexanol
3 Phenol
4 Acetylene
Explanation:
ALDEHYDES, KETONES AND CARBOXYLIC ACID
28278
When propanoic acid is treated with aqueous sodium bicarbonate, carbon dioxide is liberated. The carbon of the \(CO_2\) comes from :
1 Methyl group
2 Carboxylic group
3 Methylene group
4 Bicarbonate
Explanation:
When propionic acid is treated with aqueous sodium bicarbonate, \(CO _2\) is liberated. The \(C\) from \(CO _2\) comes from bicarbonate. \(CH _3 CH _2 COOH + NaHCO _3 \rightarrow CH _3 CH _2 COONa + H _2 O + CO _2 \uparrow\)
ALDEHYDES, KETONES AND CARBOXYLIC ACID
28279
The reduction of benzoyl chloride with \(Pd\) and \(BaSO_4/CaCO_3\) produces :
1 Benzyl chloride
2 Benzoic acid
3 Benzaldehyde
4 All of these
Explanation:
The reduction of benzoyl chloride with \(Pd\) and \(BaSO _4 / CaSO _3\) produces benzaldehyde. \(BaSO _4\) is poisoned with sulphur so that further reduction of benzaldehyde is prevented. This reaction is known as Rosenmund reaction. \(C _6 H _5 COCl + H _2 \stackrel{ pd/BaSO _4/ CaSO _3}{\longrightarrow} C _6 H _5 CHO + HCl\)
ALDEHYDES, KETONES AND CARBOXYLIC ACID
28280
Which one of the following esters cannot undergo self Claisen condensation ?
1 \(CH_3-CH_2-CH_2-COOC_2H_5\)
2 \(C_6H_5COOC_2H_5\)
3 \(C_6H_{11}-CH_2-COOC_2H_5\)
4 \(C_6H_5-CH_2COOC_2H_5\)
Explanation:
\(C _6 H _5 COOC _2 H _5\) cannot undergo self Claisen condensation as it do not has hydrogen atom.
28277
Which of the following compounds gives carbondioxide with \(NaHCO_3\) ?
1 Acetic acid
2 Hexanol
3 Phenol
4 Acetylene
Explanation:
ALDEHYDES, KETONES AND CARBOXYLIC ACID
28278
When propanoic acid is treated with aqueous sodium bicarbonate, carbon dioxide is liberated. The carbon of the \(CO_2\) comes from :
1 Methyl group
2 Carboxylic group
3 Methylene group
4 Bicarbonate
Explanation:
When propionic acid is treated with aqueous sodium bicarbonate, \(CO _2\) is liberated. The \(C\) from \(CO _2\) comes from bicarbonate. \(CH _3 CH _2 COOH + NaHCO _3 \rightarrow CH _3 CH _2 COONa + H _2 O + CO _2 \uparrow\)
ALDEHYDES, KETONES AND CARBOXYLIC ACID
28279
The reduction of benzoyl chloride with \(Pd\) and \(BaSO_4/CaCO_3\) produces :
1 Benzyl chloride
2 Benzoic acid
3 Benzaldehyde
4 All of these
Explanation:
The reduction of benzoyl chloride with \(Pd\) and \(BaSO _4 / CaSO _3\) produces benzaldehyde. \(BaSO _4\) is poisoned with sulphur so that further reduction of benzaldehyde is prevented. This reaction is known as Rosenmund reaction. \(C _6 H _5 COCl + H _2 \stackrel{ pd/BaSO _4/ CaSO _3}{\longrightarrow} C _6 H _5 CHO + HCl\)
ALDEHYDES, KETONES AND CARBOXYLIC ACID
28280
Which one of the following esters cannot undergo self Claisen condensation ?
1 \(CH_3-CH_2-CH_2-COOC_2H_5\)
2 \(C_6H_5COOC_2H_5\)
3 \(C_6H_{11}-CH_2-COOC_2H_5\)
4 \(C_6H_5-CH_2COOC_2H_5\)
Explanation:
\(C _6 H _5 COOC _2 H _5\) cannot undergo self Claisen condensation as it do not has hydrogen atom.
