15485
\(HBr\) reacts with \(CH_2 = CH -OCH_3\) at room temperature to give
1 \(BrCH_2CHO\) and \(CH_3OH\)
2 \(BrCH_2-CH_2-OCH_3\)
3 \(H_3C-CHBr-OCH_3\)
4 \(CH_3CHO\) and \(CH_3Br\)
Explanation:
ALCOHOLS, PHENOLS AND ETHER
15486
Which one of the following will most readily dehydrated in acidic condition
1
2
3
4
Explanation:
ALCOHOLS, PHENOLS AND ETHER
15487
The number of stereoisomers possible for a compound of the molecular formula\(C{H_3} - CH = CH - CH\left( {OH} \right) - Me\) is
1 \(4\)
2 \(6\)
3 \(3\)
4 \(2\)
Explanation:
D and L for cis form. D and L for trans form. So, total of 4 isomers are possible.
ALCOHOLS, PHENOLS AND ETHER
15488
\(X\) can be -
1 conc. \(H_2SO_4\)
2 \(POCl_3\) / Pyridine
3 conc.\(H_3PO_4\)
4 None of these
Explanation:
In case of conc. \(H_2SO_4\) & conc. \(H_3PO_4 , E_1\) mechanism will be followed ring expansion will occur but with \(POCl_3\) / Pyridine \(E_2\) mechanism.
ALCOHOLS, PHENOLS AND ETHER
15489
(major) '\(A\)' and '\(B\)' are respectively
15485
\(HBr\) reacts with \(CH_2 = CH -OCH_3\) at room temperature to give
1 \(BrCH_2CHO\) and \(CH_3OH\)
2 \(BrCH_2-CH_2-OCH_3\)
3 \(H_3C-CHBr-OCH_3\)
4 \(CH_3CHO\) and \(CH_3Br\)
Explanation:
ALCOHOLS, PHENOLS AND ETHER
15486
Which one of the following will most readily dehydrated in acidic condition
1
2
3
4
Explanation:
ALCOHOLS, PHENOLS AND ETHER
15487
The number of stereoisomers possible for a compound of the molecular formula\(C{H_3} - CH = CH - CH\left( {OH} \right) - Me\) is
1 \(4\)
2 \(6\)
3 \(3\)
4 \(2\)
Explanation:
D and L for cis form. D and L for trans form. So, total of 4 isomers are possible.
ALCOHOLS, PHENOLS AND ETHER
15488
\(X\) can be -
1 conc. \(H_2SO_4\)
2 \(POCl_3\) / Pyridine
3 conc.\(H_3PO_4\)
4 None of these
Explanation:
In case of conc. \(H_2SO_4\) & conc. \(H_3PO_4 , E_1\) mechanism will be followed ring expansion will occur but with \(POCl_3\) / Pyridine \(E_2\) mechanism.
ALCOHOLS, PHENOLS AND ETHER
15489
(major) '\(A\)' and '\(B\)' are respectively
15485
\(HBr\) reacts with \(CH_2 = CH -OCH_3\) at room temperature to give
1 \(BrCH_2CHO\) and \(CH_3OH\)
2 \(BrCH_2-CH_2-OCH_3\)
3 \(H_3C-CHBr-OCH_3\)
4 \(CH_3CHO\) and \(CH_3Br\)
Explanation:
ALCOHOLS, PHENOLS AND ETHER
15486
Which one of the following will most readily dehydrated in acidic condition
1
2
3
4
Explanation:
ALCOHOLS, PHENOLS AND ETHER
15487
The number of stereoisomers possible for a compound of the molecular formula\(C{H_3} - CH = CH - CH\left( {OH} \right) - Me\) is
1 \(4\)
2 \(6\)
3 \(3\)
4 \(2\)
Explanation:
D and L for cis form. D and L for trans form. So, total of 4 isomers are possible.
ALCOHOLS, PHENOLS AND ETHER
15488
\(X\) can be -
1 conc. \(H_2SO_4\)
2 \(POCl_3\) / Pyridine
3 conc.\(H_3PO_4\)
4 None of these
Explanation:
In case of conc. \(H_2SO_4\) & conc. \(H_3PO_4 , E_1\) mechanism will be followed ring expansion will occur but with \(POCl_3\) / Pyridine \(E_2\) mechanism.
ALCOHOLS, PHENOLS AND ETHER
15489
(major) '\(A\)' and '\(B\)' are respectively
15485
\(HBr\) reacts with \(CH_2 = CH -OCH_3\) at room temperature to give
1 \(BrCH_2CHO\) and \(CH_3OH\)
2 \(BrCH_2-CH_2-OCH_3\)
3 \(H_3C-CHBr-OCH_3\)
4 \(CH_3CHO\) and \(CH_3Br\)
Explanation:
ALCOHOLS, PHENOLS AND ETHER
15486
Which one of the following will most readily dehydrated in acidic condition
1
2
3
4
Explanation:
ALCOHOLS, PHENOLS AND ETHER
15487
The number of stereoisomers possible for a compound of the molecular formula\(C{H_3} - CH = CH - CH\left( {OH} \right) - Me\) is
1 \(4\)
2 \(6\)
3 \(3\)
4 \(2\)
Explanation:
D and L for cis form. D and L for trans form. So, total of 4 isomers are possible.
ALCOHOLS, PHENOLS AND ETHER
15488
\(X\) can be -
1 conc. \(H_2SO_4\)
2 \(POCl_3\) / Pyridine
3 conc.\(H_3PO_4\)
4 None of these
Explanation:
In case of conc. \(H_2SO_4\) & conc. \(H_3PO_4 , E_1\) mechanism will be followed ring expansion will occur but with \(POCl_3\) / Pyridine \(E_2\) mechanism.
ALCOHOLS, PHENOLS AND ETHER
15489
(major) '\(A\)' and '\(B\)' are respectively
15485
\(HBr\) reacts with \(CH_2 = CH -OCH_3\) at room temperature to give
1 \(BrCH_2CHO\) and \(CH_3OH\)
2 \(BrCH_2-CH_2-OCH_3\)
3 \(H_3C-CHBr-OCH_3\)
4 \(CH_3CHO\) and \(CH_3Br\)
Explanation:
ALCOHOLS, PHENOLS AND ETHER
15486
Which one of the following will most readily dehydrated in acidic condition
1
2
3
4
Explanation:
ALCOHOLS, PHENOLS AND ETHER
15487
The number of stereoisomers possible for a compound of the molecular formula\(C{H_3} - CH = CH - CH\left( {OH} \right) - Me\) is
1 \(4\)
2 \(6\)
3 \(3\)
4 \(2\)
Explanation:
D and L for cis form. D and L for trans form. So, total of 4 isomers are possible.
ALCOHOLS, PHENOLS AND ETHER
15488
\(X\) can be -
1 conc. \(H_2SO_4\)
2 \(POCl_3\) / Pyridine
3 conc.\(H_3PO_4\)
4 None of these
Explanation:
In case of conc. \(H_2SO_4\) & conc. \(H_3PO_4 , E_1\) mechanism will be followed ring expansion will occur but with \(POCl_3\) / Pyridine \(E_2\) mechanism.
ALCOHOLS, PHENOLS AND ETHER
15489
(major) '\(A\)' and '\(B\)' are respectively
