232255
Among the following statements about the molecules $X$ and $Y$, the one(s) which correct is (are)
1 $\mathrm{X}$ and $\mathrm{Y}$ are diastereomers
2 $\mathrm{X}$ and $\mathrm{Y}$ are enantiomers
3 $\mathrm{X}$ and $\mathrm{Y}$ are both aldohexoses
4 $\mathrm{X}$ is a $\mathrm{D}$-sugar and $\mathrm{Y}$ is an $\mathrm{L}$-sugar
Explanation:
, c, d) Exp:(B, C, D): In compound $\mathrm{X}$ an $\mathrm{Y}$ (a) $[\mathrm{X}]$ and $[\mathrm{Y}]$ are diasteromers becuase it does have mirror image. (b) $[\mathrm{x}]$ and $[\mathrm{y}]$ are not enantiomers because it does not have non-super imposable mirror image. (c) Both are aldonexoes because it has aldehyde group which is offer mild oxidation it convert into glutonic acid in the presence of Bromine water and it is acts as reducing agent. (d) The compound $[\mathrm{x}]$ rotate plane polarised light in right direction so, it is D-sugar. While [y] rotate plane polorised light in left direction, so it is Lsugar. So from the above explanation $a, b \& d$ is correct.
WB JEET-2014
GENERAL ORGANIC CHEMISTRY
232256
In a mixture, two enantiomers are found to be present in $85 \%$ and $15 \%$ respectively. The enantiomeric excess (ee) is
1 $85 \%$
2 $15 \%$
3 $70 \%$
4 $60 \%$
Explanation:
An enantiormeric excess is also known as optical purity. It is represented by (ee) in percentage. A solution containing single enantiomer is said to be optically pure ee $=$ major - minar two enantiomer given in $85 \%$ and $15 \%$ ee $=(85-15)=70 \%$
WB JEET-2015
GENERAL ORGANIC CHEMISTRY
232113
Which of the following will be chiral?
1 $\mathrm{CH}_{3} \mathrm{CHCl}_{2}$
2 $\mathrm{CH}_{3} \mathrm{CHBrCl}$
3 $\mathrm{CD}_{2} \mathrm{Cl}_{2}$
4 $\mathrm{CH}_{2} \mathrm{ClBr}$
Explanation:
Chiral compound are those in which carbon atom is attached with 4 different substituents.
J and K CET-(2005)
GENERAL ORGANIC CHEMISTRY
232002
Which one of the following exhibits enantiomerism?
232255
Among the following statements about the molecules $X$ and $Y$, the one(s) which correct is (are)
1 $\mathrm{X}$ and $\mathrm{Y}$ are diastereomers
2 $\mathrm{X}$ and $\mathrm{Y}$ are enantiomers
3 $\mathrm{X}$ and $\mathrm{Y}$ are both aldohexoses
4 $\mathrm{X}$ is a $\mathrm{D}$-sugar and $\mathrm{Y}$ is an $\mathrm{L}$-sugar
Explanation:
, c, d) Exp:(B, C, D): In compound $\mathrm{X}$ an $\mathrm{Y}$ (a) $[\mathrm{X}]$ and $[\mathrm{Y}]$ are diasteromers becuase it does have mirror image. (b) $[\mathrm{x}]$ and $[\mathrm{y}]$ are not enantiomers because it does not have non-super imposable mirror image. (c) Both are aldonexoes because it has aldehyde group which is offer mild oxidation it convert into glutonic acid in the presence of Bromine water and it is acts as reducing agent. (d) The compound $[\mathrm{x}]$ rotate plane polarised light in right direction so, it is D-sugar. While [y] rotate plane polorised light in left direction, so it is Lsugar. So from the above explanation $a, b \& d$ is correct.
WB JEET-2014
GENERAL ORGANIC CHEMISTRY
232256
In a mixture, two enantiomers are found to be present in $85 \%$ and $15 \%$ respectively. The enantiomeric excess (ee) is
1 $85 \%$
2 $15 \%$
3 $70 \%$
4 $60 \%$
Explanation:
An enantiormeric excess is also known as optical purity. It is represented by (ee) in percentage. A solution containing single enantiomer is said to be optically pure ee $=$ major - minar two enantiomer given in $85 \%$ and $15 \%$ ee $=(85-15)=70 \%$
WB JEET-2015
GENERAL ORGANIC CHEMISTRY
232113
Which of the following will be chiral?
1 $\mathrm{CH}_{3} \mathrm{CHCl}_{2}$
2 $\mathrm{CH}_{3} \mathrm{CHBrCl}$
3 $\mathrm{CD}_{2} \mathrm{Cl}_{2}$
4 $\mathrm{CH}_{2} \mathrm{ClBr}$
Explanation:
Chiral compound are those in which carbon atom is attached with 4 different substituents.
J and K CET-(2005)
GENERAL ORGANIC CHEMISTRY
232002
Which one of the following exhibits enantiomerism?
NEET Test Series from KOTA - 10 Papers In MS WORD
WhatsApp Here
GENERAL ORGANIC CHEMISTRY
232255
Among the following statements about the molecules $X$ and $Y$, the one(s) which correct is (are)
1 $\mathrm{X}$ and $\mathrm{Y}$ are diastereomers
2 $\mathrm{X}$ and $\mathrm{Y}$ are enantiomers
3 $\mathrm{X}$ and $\mathrm{Y}$ are both aldohexoses
4 $\mathrm{X}$ is a $\mathrm{D}$-sugar and $\mathrm{Y}$ is an $\mathrm{L}$-sugar
Explanation:
, c, d) Exp:(B, C, D): In compound $\mathrm{X}$ an $\mathrm{Y}$ (a) $[\mathrm{X}]$ and $[\mathrm{Y}]$ are diasteromers becuase it does have mirror image. (b) $[\mathrm{x}]$ and $[\mathrm{y}]$ are not enantiomers because it does not have non-super imposable mirror image. (c) Both are aldonexoes because it has aldehyde group which is offer mild oxidation it convert into glutonic acid in the presence of Bromine water and it is acts as reducing agent. (d) The compound $[\mathrm{x}]$ rotate plane polarised light in right direction so, it is D-sugar. While [y] rotate plane polorised light in left direction, so it is Lsugar. So from the above explanation $a, b \& d$ is correct.
WB JEET-2014
GENERAL ORGANIC CHEMISTRY
232256
In a mixture, two enantiomers are found to be present in $85 \%$ and $15 \%$ respectively. The enantiomeric excess (ee) is
1 $85 \%$
2 $15 \%$
3 $70 \%$
4 $60 \%$
Explanation:
An enantiormeric excess is also known as optical purity. It is represented by (ee) in percentage. A solution containing single enantiomer is said to be optically pure ee $=$ major - minar two enantiomer given in $85 \%$ and $15 \%$ ee $=(85-15)=70 \%$
WB JEET-2015
GENERAL ORGANIC CHEMISTRY
232113
Which of the following will be chiral?
1 $\mathrm{CH}_{3} \mathrm{CHCl}_{2}$
2 $\mathrm{CH}_{3} \mathrm{CHBrCl}$
3 $\mathrm{CD}_{2} \mathrm{Cl}_{2}$
4 $\mathrm{CH}_{2} \mathrm{ClBr}$
Explanation:
Chiral compound are those in which carbon atom is attached with 4 different substituents.
J and K CET-(2005)
GENERAL ORGANIC CHEMISTRY
232002
Which one of the following exhibits enantiomerism?
232255
Among the following statements about the molecules $X$ and $Y$, the one(s) which correct is (are)
1 $\mathrm{X}$ and $\mathrm{Y}$ are diastereomers
2 $\mathrm{X}$ and $\mathrm{Y}$ are enantiomers
3 $\mathrm{X}$ and $\mathrm{Y}$ are both aldohexoses
4 $\mathrm{X}$ is a $\mathrm{D}$-sugar and $\mathrm{Y}$ is an $\mathrm{L}$-sugar
Explanation:
, c, d) Exp:(B, C, D): In compound $\mathrm{X}$ an $\mathrm{Y}$ (a) $[\mathrm{X}]$ and $[\mathrm{Y}]$ are diasteromers becuase it does have mirror image. (b) $[\mathrm{x}]$ and $[\mathrm{y}]$ are not enantiomers because it does not have non-super imposable mirror image. (c) Both are aldonexoes because it has aldehyde group which is offer mild oxidation it convert into glutonic acid in the presence of Bromine water and it is acts as reducing agent. (d) The compound $[\mathrm{x}]$ rotate plane polarised light in right direction so, it is D-sugar. While [y] rotate plane polorised light in left direction, so it is Lsugar. So from the above explanation $a, b \& d$ is correct.
WB JEET-2014
GENERAL ORGANIC CHEMISTRY
232256
In a mixture, two enantiomers are found to be present in $85 \%$ and $15 \%$ respectively. The enantiomeric excess (ee) is
1 $85 \%$
2 $15 \%$
3 $70 \%$
4 $60 \%$
Explanation:
An enantiormeric excess is also known as optical purity. It is represented by (ee) in percentage. A solution containing single enantiomer is said to be optically pure ee $=$ major - minar two enantiomer given in $85 \%$ and $15 \%$ ee $=(85-15)=70 \%$
WB JEET-2015
GENERAL ORGANIC CHEMISTRY
232113
Which of the following will be chiral?
1 $\mathrm{CH}_{3} \mathrm{CHCl}_{2}$
2 $\mathrm{CH}_{3} \mathrm{CHBrCl}$
3 $\mathrm{CD}_{2} \mathrm{Cl}_{2}$
4 $\mathrm{CH}_{2} \mathrm{ClBr}$
Explanation:
Chiral compound are those in which carbon atom is attached with 4 different substituents.
J and K CET-(2005)
GENERAL ORGANIC CHEMISTRY
232002
Which one of the following exhibits enantiomerism?
