27999
On prolonged heating of ammonium cyanate or urea, we get
1 \({N_2}\)
2 \(C{O_2}\)
3 Biurette
4 Ammonium carbonate
Explanation:
(c) \(\mathop {N{H_4}CNO}\limits_{{\text{Ammonium cyanate}}} \xrightarrow{\Delta }\,\,\,\mathop {N{H_2} - CO - N{H_2}}\limits_{{\text{Urea}}} \) \(\mathop {N{H_2} - CO - N{H_2}}\limits_{} + \mathop {H - NH - CO - N{H_2}}\limits_{{\text{Urea}}} \mathop {\xrightarrow{\Delta }}\limits_{ - N{H_3}} \) \(\mathop {N{H_2} - CO - NH - CO - N{H_2}}\limits_{{\text{Biuret}}} \)
ALDEHYDES, KETONES AND CARBOXYLIC ACID
28000
In the Gabriel's phthalimide synthesis, phthalimide is treated first with
1 \({C_2}{H_5}I/KOH\)
2 Ethanolic \(Na\)
3 Ethanol and \({H_2}S{O_4}\)
4 Ether and \(LiAl{H_4}\)
Explanation:
Gabriel phthalimide is firstly treated with alcoholic Kor fo form potassium phthalimide which on further reaction with ethyl iodide gives Ne ethyl phthalimide, The product \(N-\)ethyl phthalimite is hydrolysed with dilute \(H C\) lo form primary amine, ie. ethylamine. Th is reaction is known as Gabriel phthalimide synthesis.
ALDEHYDES, KETONES AND CARBOXYLIC ACID
28001
Which of the following is the strongest acid
27999
On prolonged heating of ammonium cyanate or urea, we get
1 \({N_2}\)
2 \(C{O_2}\)
3 Biurette
4 Ammonium carbonate
Explanation:
(c) \(\mathop {N{H_4}CNO}\limits_{{\text{Ammonium cyanate}}} \xrightarrow{\Delta }\,\,\,\mathop {N{H_2} - CO - N{H_2}}\limits_{{\text{Urea}}} \) \(\mathop {N{H_2} - CO - N{H_2}}\limits_{} + \mathop {H - NH - CO - N{H_2}}\limits_{{\text{Urea}}} \mathop {\xrightarrow{\Delta }}\limits_{ - N{H_3}} \) \(\mathop {N{H_2} - CO - NH - CO - N{H_2}}\limits_{{\text{Biuret}}} \)
ALDEHYDES, KETONES AND CARBOXYLIC ACID
28000
In the Gabriel's phthalimide synthesis, phthalimide is treated first with
1 \({C_2}{H_5}I/KOH\)
2 Ethanolic \(Na\)
3 Ethanol and \({H_2}S{O_4}\)
4 Ether and \(LiAl{H_4}\)
Explanation:
Gabriel phthalimide is firstly treated with alcoholic Kor fo form potassium phthalimide which on further reaction with ethyl iodide gives Ne ethyl phthalimide, The product \(N-\)ethyl phthalimite is hydrolysed with dilute \(H C\) lo form primary amine, ie. ethylamine. Th is reaction is known as Gabriel phthalimide synthesis.
ALDEHYDES, KETONES AND CARBOXYLIC ACID
28001
Which of the following is the strongest acid
NEET Test Series from KOTA - 10 Papers In MS WORD
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ALDEHYDES, KETONES AND CARBOXYLIC ACID
27999
On prolonged heating of ammonium cyanate or urea, we get
1 \({N_2}\)
2 \(C{O_2}\)
3 Biurette
4 Ammonium carbonate
Explanation:
(c) \(\mathop {N{H_4}CNO}\limits_{{\text{Ammonium cyanate}}} \xrightarrow{\Delta }\,\,\,\mathop {N{H_2} - CO - N{H_2}}\limits_{{\text{Urea}}} \) \(\mathop {N{H_2} - CO - N{H_2}}\limits_{} + \mathop {H - NH - CO - N{H_2}}\limits_{{\text{Urea}}} \mathop {\xrightarrow{\Delta }}\limits_{ - N{H_3}} \) \(\mathop {N{H_2} - CO - NH - CO - N{H_2}}\limits_{{\text{Biuret}}} \)
ALDEHYDES, KETONES AND CARBOXYLIC ACID
28000
In the Gabriel's phthalimide synthesis, phthalimide is treated first with
1 \({C_2}{H_5}I/KOH\)
2 Ethanolic \(Na\)
3 Ethanol and \({H_2}S{O_4}\)
4 Ether and \(LiAl{H_4}\)
Explanation:
Gabriel phthalimide is firstly treated with alcoholic Kor fo form potassium phthalimide which on further reaction with ethyl iodide gives Ne ethyl phthalimide, The product \(N-\)ethyl phthalimite is hydrolysed with dilute \(H C\) lo form primary amine, ie. ethylamine. Th is reaction is known as Gabriel phthalimide synthesis.
ALDEHYDES, KETONES AND CARBOXYLIC ACID
28001
Which of the following is the strongest acid
27999
On prolonged heating of ammonium cyanate or urea, we get
1 \({N_2}\)
2 \(C{O_2}\)
3 Biurette
4 Ammonium carbonate
Explanation:
(c) \(\mathop {N{H_4}CNO}\limits_{{\text{Ammonium cyanate}}} \xrightarrow{\Delta }\,\,\,\mathop {N{H_2} - CO - N{H_2}}\limits_{{\text{Urea}}} \) \(\mathop {N{H_2} - CO - N{H_2}}\limits_{} + \mathop {H - NH - CO - N{H_2}}\limits_{{\text{Urea}}} \mathop {\xrightarrow{\Delta }}\limits_{ - N{H_3}} \) \(\mathop {N{H_2} - CO - NH - CO - N{H_2}}\limits_{{\text{Biuret}}} \)
ALDEHYDES, KETONES AND CARBOXYLIC ACID
28000
In the Gabriel's phthalimide synthesis, phthalimide is treated first with
1 \({C_2}{H_5}I/KOH\)
2 Ethanolic \(Na\)
3 Ethanol and \({H_2}S{O_4}\)
4 Ether and \(LiAl{H_4}\)
Explanation:
Gabriel phthalimide is firstly treated with alcoholic Kor fo form potassium phthalimide which on further reaction with ethyl iodide gives Ne ethyl phthalimide, The product \(N-\)ethyl phthalimite is hydrolysed with dilute \(H C\) lo form primary amine, ie. ethylamine. Th is reaction is known as Gabriel phthalimide synthesis.
ALDEHYDES, KETONES AND CARBOXYLIC ACID
28001
Which of the following is the strongest acid
27999
On prolonged heating of ammonium cyanate or urea, we get
1 \({N_2}\)
2 \(C{O_2}\)
3 Biurette
4 Ammonium carbonate
Explanation:
(c) \(\mathop {N{H_4}CNO}\limits_{{\text{Ammonium cyanate}}} \xrightarrow{\Delta }\,\,\,\mathop {N{H_2} - CO - N{H_2}}\limits_{{\text{Urea}}} \) \(\mathop {N{H_2} - CO - N{H_2}}\limits_{} + \mathop {H - NH - CO - N{H_2}}\limits_{{\text{Urea}}} \mathop {\xrightarrow{\Delta }}\limits_{ - N{H_3}} \) \(\mathop {N{H_2} - CO - NH - CO - N{H_2}}\limits_{{\text{Biuret}}} \)
ALDEHYDES, KETONES AND CARBOXYLIC ACID
28000
In the Gabriel's phthalimide synthesis, phthalimide is treated first with
1 \({C_2}{H_5}I/KOH\)
2 Ethanolic \(Na\)
3 Ethanol and \({H_2}S{O_4}\)
4 Ether and \(LiAl{H_4}\)
Explanation:
Gabriel phthalimide is firstly treated with alcoholic Kor fo form potassium phthalimide which on further reaction with ethyl iodide gives Ne ethyl phthalimide, The product \(N-\)ethyl phthalimite is hydrolysed with dilute \(H C\) lo form primary amine, ie. ethylamine. Th is reaction is known as Gabriel phthalimide synthesis.
ALDEHYDES, KETONES AND CARBOXYLIC ACID
28001
Which of the following is the strongest acid
