4 A complex of chromium trioxide with pyridine\(+\mathrm{HCl}\)
Explanation:
(d) PCC is pyridinium chlorochromate is a yelloworange salt with formula \(\left[\mathrm{C}_5 \mathrm{H}_5 \mathrm{NH}\right]^{+}\left[\mathrm{CrO}_3 \mathrm{Cl}\right]\). It is a reagent in organic synthesis used for the oxidation of alcohols to form aldehyde or ketone.
\(\mathrm{C}_5 \mathrm{H}_5 \mathrm{~N}+\mathrm{HCl}+\mathrm{CrO}_3 \rightarrow\left[\mathrm{C}_5 \mathrm{H}_5 \mathrm{~N}_4\right]\left[\mathrm{CrO}_3 \mathrm{Cl}\right]\)
Karnataka CET 2024
CHEMISTRY(KCET)
285542
A better reagent to oxidize primary alcohols into aldehyde is:
(a) Pyridinium chlorochromate (PCC) is a mild oxidizing agent that can selectively oxidize -OH to - CHO.
Alkaline \(\mathrm{KMnO}_4\), acidified \(\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7, \mathrm{CrO}_3\) are strong oxidizing agents that change -OH to -COOH .
Karnataka CET 2023
CHEMISTRY(KCET)
285543
Compounds P and R in the following reaction are
\(\xrightarrow[\text { (i) } \mathrm{B}_2 \mathrm{H}_6]{ } \mathrm{R}\)
(ii) \(\mathrm{H}_2 \mathrm{O}_2 \mathrm{OH}^{-}\)
1 Position isomers
2 Functional isomers
3 Metamers
4 Identical
Explanation:
(a)
(P)
\(\xrightarrow[\Delta]{\text { Conc. } \mathrm{H}_2 \mathrm{SO}_4} \mathrm{CH}_2=\mathrm{CH}-\mathrm{CH}_3\)
(Q)
(R)
Thus, P and R are position isomers.
Karnataka CET 2023
CHEMISTRY(KCET)
285544
The heating of phenyl methyl ether with HI produces an aromatic compound A which on treatment with conc.\(\mathrm{HNO}_3\) gives B. A and B respectively are,
4 A complex of chromium trioxide with pyridine\(+\mathrm{HCl}\)
Explanation:
(d) PCC is pyridinium chlorochromate is a yelloworange salt with formula \(\left[\mathrm{C}_5 \mathrm{H}_5 \mathrm{NH}\right]^{+}\left[\mathrm{CrO}_3 \mathrm{Cl}\right]\). It is a reagent in organic synthesis used for the oxidation of alcohols to form aldehyde or ketone.
\(\mathrm{C}_5 \mathrm{H}_5 \mathrm{~N}+\mathrm{HCl}+\mathrm{CrO}_3 \rightarrow\left[\mathrm{C}_5 \mathrm{H}_5 \mathrm{~N}_4\right]\left[\mathrm{CrO}_3 \mathrm{Cl}\right]\)
Karnataka CET 2024
CHEMISTRY(KCET)
285542
A better reagent to oxidize primary alcohols into aldehyde is:
(a) Pyridinium chlorochromate (PCC) is a mild oxidizing agent that can selectively oxidize -OH to - CHO.
Alkaline \(\mathrm{KMnO}_4\), acidified \(\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7, \mathrm{CrO}_3\) are strong oxidizing agents that change -OH to -COOH .
Karnataka CET 2023
CHEMISTRY(KCET)
285543
Compounds P and R in the following reaction are
\(\xrightarrow[\text { (i) } \mathrm{B}_2 \mathrm{H}_6]{ } \mathrm{R}\)
(ii) \(\mathrm{H}_2 \mathrm{O}_2 \mathrm{OH}^{-}\)
1 Position isomers
2 Functional isomers
3 Metamers
4 Identical
Explanation:
(a)
(P)
\(\xrightarrow[\Delta]{\text { Conc. } \mathrm{H}_2 \mathrm{SO}_4} \mathrm{CH}_2=\mathrm{CH}-\mathrm{CH}_3\)
(Q)
(R)
Thus, P and R are position isomers.
Karnataka CET 2023
CHEMISTRY(KCET)
285544
The heating of phenyl methyl ether with HI produces an aromatic compound A which on treatment with conc.\(\mathrm{HNO}_3\) gives B. A and B respectively are,
4 A complex of chromium trioxide with pyridine\(+\mathrm{HCl}\)
Explanation:
(d) PCC is pyridinium chlorochromate is a yelloworange salt with formula \(\left[\mathrm{C}_5 \mathrm{H}_5 \mathrm{NH}\right]^{+}\left[\mathrm{CrO}_3 \mathrm{Cl}\right]\). It is a reagent in organic synthesis used for the oxidation of alcohols to form aldehyde or ketone.
\(\mathrm{C}_5 \mathrm{H}_5 \mathrm{~N}+\mathrm{HCl}+\mathrm{CrO}_3 \rightarrow\left[\mathrm{C}_5 \mathrm{H}_5 \mathrm{~N}_4\right]\left[\mathrm{CrO}_3 \mathrm{Cl}\right]\)
Karnataka CET 2024
CHEMISTRY(KCET)
285542
A better reagent to oxidize primary alcohols into aldehyde is:
(a) Pyridinium chlorochromate (PCC) is a mild oxidizing agent that can selectively oxidize -OH to - CHO.
Alkaline \(\mathrm{KMnO}_4\), acidified \(\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7, \mathrm{CrO}_3\) are strong oxidizing agents that change -OH to -COOH .
Karnataka CET 2023
CHEMISTRY(KCET)
285543
Compounds P and R in the following reaction are
\(\xrightarrow[\text { (i) } \mathrm{B}_2 \mathrm{H}_6]{ } \mathrm{R}\)
(ii) \(\mathrm{H}_2 \mathrm{O}_2 \mathrm{OH}^{-}\)
1 Position isomers
2 Functional isomers
3 Metamers
4 Identical
Explanation:
(a)
(P)
\(\xrightarrow[\Delta]{\text { Conc. } \mathrm{H}_2 \mathrm{SO}_4} \mathrm{CH}_2=\mathrm{CH}-\mathrm{CH}_3\)
(Q)
(R)
Thus, P and R are position isomers.
Karnataka CET 2023
CHEMISTRY(KCET)
285544
The heating of phenyl methyl ether with HI produces an aromatic compound A which on treatment with conc.\(\mathrm{HNO}_3\) gives B. A and B respectively are,
4 A complex of chromium trioxide with pyridine\(+\mathrm{HCl}\)
Explanation:
(d) PCC is pyridinium chlorochromate is a yelloworange salt with formula \(\left[\mathrm{C}_5 \mathrm{H}_5 \mathrm{NH}\right]^{+}\left[\mathrm{CrO}_3 \mathrm{Cl}\right]\). It is a reagent in organic synthesis used for the oxidation of alcohols to form aldehyde or ketone.
\(\mathrm{C}_5 \mathrm{H}_5 \mathrm{~N}+\mathrm{HCl}+\mathrm{CrO}_3 \rightarrow\left[\mathrm{C}_5 \mathrm{H}_5 \mathrm{~N}_4\right]\left[\mathrm{CrO}_3 \mathrm{Cl}\right]\)
Karnataka CET 2024
CHEMISTRY(KCET)
285542
A better reagent to oxidize primary alcohols into aldehyde is:
(a) Pyridinium chlorochromate (PCC) is a mild oxidizing agent that can selectively oxidize -OH to - CHO.
Alkaline \(\mathrm{KMnO}_4\), acidified \(\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7, \mathrm{CrO}_3\) are strong oxidizing agents that change -OH to -COOH .
Karnataka CET 2023
CHEMISTRY(KCET)
285543
Compounds P and R in the following reaction are
\(\xrightarrow[\text { (i) } \mathrm{B}_2 \mathrm{H}_6]{ } \mathrm{R}\)
(ii) \(\mathrm{H}_2 \mathrm{O}_2 \mathrm{OH}^{-}\)
1 Position isomers
2 Functional isomers
3 Metamers
4 Identical
Explanation:
(a)
(P)
\(\xrightarrow[\Delta]{\text { Conc. } \mathrm{H}_2 \mathrm{SO}_4} \mathrm{CH}_2=\mathrm{CH}-\mathrm{CH}_3\)
(Q)
(R)
Thus, P and R are position isomers.
Karnataka CET 2023
CHEMISTRY(KCET)
285544
The heating of phenyl methyl ether with HI produces an aromatic compound A which on treatment with conc.\(\mathrm{HNO}_3\) gives B. A and B respectively are,