(D): The carbon centre which is connected with different group is known as chiral centre.
A.P. EAMCET(Medical) -2010
GENERAL ORGANIC CHEMISTRY
232005
Which one of the following of 2,3-butane diol is enantiomeric?
1 $2 \mathrm{R}, 3 \mathrm{R}$ and $2 \mathrm{~S}, 3 \mathrm{~S}$
2 $2 \mathrm{~S}, 3 \mathrm{~S}$ and $2 \mathrm{~S}, 3 \mathrm{R}$
3 $2 \mathrm{R}, 3 \mathrm{R}$ and $2 \mathrm{R}, 3 \mathrm{~S}$
4 $2 \mathrm{~S}, 3 \mathrm{~S}$ and $2 \mathrm{R}, 3 \mathrm{~S}$
Explanation:
Enantiomers are a pair of molecules that exist in two forms that are mirror images of one another but cannot be superimposed one upon the other. Structure of 2,3-butanediol is given below- Enantiomer The pairs 2R, 3R-butane diol and 2S, 3S-butane diol are enantiomer.
AP EAMCET- (Engg.) - 2010
GENERAL ORGANIC CHEMISTRY
232011
Which of the following structures represents a chiral compound?
1
2
3
4
Explanation:
The chiral C-atom is the one in which four different groups/atoms are attached.
AMU-2018
GENERAL ORGANIC CHEMISTRY
232013
Which of the following complexes can also represent facial (fac) and meridional (mer) isomers?
(D) : The octahedral complex $\left[\mathrm{CO}\left(\mathrm{NH}_{3}\right)_{3}\left(\mathrm{NO}_{2}\right)_{3}\right]$ Show facial (fac) and meridonial (mer) isomers are-
AMU-2016
GENERAL ORGANIC CHEMISTRY
232014
Maximum number of $\sigma$-bonds that may be present in an isomer of $\mathrm{C}_{4} \mathrm{H}_{8}$ are
1 10
2 11
3 12
4 13
Explanation:
Maximum no. of $\sigma$ bond that may present in an isomer of $\mathrm{C}_{4} \mathrm{H}_{8}$. Total no. of $\sigma$ bond is 11 .
(D): The carbon centre which is connected with different group is known as chiral centre.
A.P. EAMCET(Medical) -2010
GENERAL ORGANIC CHEMISTRY
232005
Which one of the following of 2,3-butane diol is enantiomeric?
1 $2 \mathrm{R}, 3 \mathrm{R}$ and $2 \mathrm{~S}, 3 \mathrm{~S}$
2 $2 \mathrm{~S}, 3 \mathrm{~S}$ and $2 \mathrm{~S}, 3 \mathrm{R}$
3 $2 \mathrm{R}, 3 \mathrm{R}$ and $2 \mathrm{R}, 3 \mathrm{~S}$
4 $2 \mathrm{~S}, 3 \mathrm{~S}$ and $2 \mathrm{R}, 3 \mathrm{~S}$
Explanation:
Enantiomers are a pair of molecules that exist in two forms that are mirror images of one another but cannot be superimposed one upon the other. Structure of 2,3-butanediol is given below- Enantiomer The pairs 2R, 3R-butane diol and 2S, 3S-butane diol are enantiomer.
AP EAMCET- (Engg.) - 2010
GENERAL ORGANIC CHEMISTRY
232011
Which of the following structures represents a chiral compound?
1
2
3
4
Explanation:
The chiral C-atom is the one in which four different groups/atoms are attached.
AMU-2018
GENERAL ORGANIC CHEMISTRY
232013
Which of the following complexes can also represent facial (fac) and meridional (mer) isomers?
(D) : The octahedral complex $\left[\mathrm{CO}\left(\mathrm{NH}_{3}\right)_{3}\left(\mathrm{NO}_{2}\right)_{3}\right]$ Show facial (fac) and meridonial (mer) isomers are-
AMU-2016
GENERAL ORGANIC CHEMISTRY
232014
Maximum number of $\sigma$-bonds that may be present in an isomer of $\mathrm{C}_{4} \mathrm{H}_{8}$ are
1 10
2 11
3 12
4 13
Explanation:
Maximum no. of $\sigma$ bond that may present in an isomer of $\mathrm{C}_{4} \mathrm{H}_{8}$. Total no. of $\sigma$ bond is 11 .
(D): The carbon centre which is connected with different group is known as chiral centre.
A.P. EAMCET(Medical) -2010
GENERAL ORGANIC CHEMISTRY
232005
Which one of the following of 2,3-butane diol is enantiomeric?
1 $2 \mathrm{R}, 3 \mathrm{R}$ and $2 \mathrm{~S}, 3 \mathrm{~S}$
2 $2 \mathrm{~S}, 3 \mathrm{~S}$ and $2 \mathrm{~S}, 3 \mathrm{R}$
3 $2 \mathrm{R}, 3 \mathrm{R}$ and $2 \mathrm{R}, 3 \mathrm{~S}$
4 $2 \mathrm{~S}, 3 \mathrm{~S}$ and $2 \mathrm{R}, 3 \mathrm{~S}$
Explanation:
Enantiomers are a pair of molecules that exist in two forms that are mirror images of one another but cannot be superimposed one upon the other. Structure of 2,3-butanediol is given below- Enantiomer The pairs 2R, 3R-butane diol and 2S, 3S-butane diol are enantiomer.
AP EAMCET- (Engg.) - 2010
GENERAL ORGANIC CHEMISTRY
232011
Which of the following structures represents a chiral compound?
1
2
3
4
Explanation:
The chiral C-atom is the one in which four different groups/atoms are attached.
AMU-2018
GENERAL ORGANIC CHEMISTRY
232013
Which of the following complexes can also represent facial (fac) and meridional (mer) isomers?
(D) : The octahedral complex $\left[\mathrm{CO}\left(\mathrm{NH}_{3}\right)_{3}\left(\mathrm{NO}_{2}\right)_{3}\right]$ Show facial (fac) and meridonial (mer) isomers are-
AMU-2016
GENERAL ORGANIC CHEMISTRY
232014
Maximum number of $\sigma$-bonds that may be present in an isomer of $\mathrm{C}_{4} \mathrm{H}_{8}$ are
1 10
2 11
3 12
4 13
Explanation:
Maximum no. of $\sigma$ bond that may present in an isomer of $\mathrm{C}_{4} \mathrm{H}_{8}$. Total no. of $\sigma$ bond is 11 .
(D): The carbon centre which is connected with different group is known as chiral centre.
A.P. EAMCET(Medical) -2010
GENERAL ORGANIC CHEMISTRY
232005
Which one of the following of 2,3-butane diol is enantiomeric?
1 $2 \mathrm{R}, 3 \mathrm{R}$ and $2 \mathrm{~S}, 3 \mathrm{~S}$
2 $2 \mathrm{~S}, 3 \mathrm{~S}$ and $2 \mathrm{~S}, 3 \mathrm{R}$
3 $2 \mathrm{R}, 3 \mathrm{R}$ and $2 \mathrm{R}, 3 \mathrm{~S}$
4 $2 \mathrm{~S}, 3 \mathrm{~S}$ and $2 \mathrm{R}, 3 \mathrm{~S}$
Explanation:
Enantiomers are a pair of molecules that exist in two forms that are mirror images of one another but cannot be superimposed one upon the other. Structure of 2,3-butanediol is given below- Enantiomer The pairs 2R, 3R-butane diol and 2S, 3S-butane diol are enantiomer.
AP EAMCET- (Engg.) - 2010
GENERAL ORGANIC CHEMISTRY
232011
Which of the following structures represents a chiral compound?
1
2
3
4
Explanation:
The chiral C-atom is the one in which four different groups/atoms are attached.
AMU-2018
GENERAL ORGANIC CHEMISTRY
232013
Which of the following complexes can also represent facial (fac) and meridional (mer) isomers?
(D) : The octahedral complex $\left[\mathrm{CO}\left(\mathrm{NH}_{3}\right)_{3}\left(\mathrm{NO}_{2}\right)_{3}\right]$ Show facial (fac) and meridonial (mer) isomers are-
AMU-2016
GENERAL ORGANIC CHEMISTRY
232014
Maximum number of $\sigma$-bonds that may be present in an isomer of $\mathrm{C}_{4} \mathrm{H}_{8}$ are
1 10
2 11
3 12
4 13
Explanation:
Maximum no. of $\sigma$ bond that may present in an isomer of $\mathrm{C}_{4} \mathrm{H}_{8}$. Total no. of $\sigma$ bond is 11 .
(D): The carbon centre which is connected with different group is known as chiral centre.
A.P. EAMCET(Medical) -2010
GENERAL ORGANIC CHEMISTRY
232005
Which one of the following of 2,3-butane diol is enantiomeric?
1 $2 \mathrm{R}, 3 \mathrm{R}$ and $2 \mathrm{~S}, 3 \mathrm{~S}$
2 $2 \mathrm{~S}, 3 \mathrm{~S}$ and $2 \mathrm{~S}, 3 \mathrm{R}$
3 $2 \mathrm{R}, 3 \mathrm{R}$ and $2 \mathrm{R}, 3 \mathrm{~S}$
4 $2 \mathrm{~S}, 3 \mathrm{~S}$ and $2 \mathrm{R}, 3 \mathrm{~S}$
Explanation:
Enantiomers are a pair of molecules that exist in two forms that are mirror images of one another but cannot be superimposed one upon the other. Structure of 2,3-butanediol is given below- Enantiomer The pairs 2R, 3R-butane diol and 2S, 3S-butane diol are enantiomer.
AP EAMCET- (Engg.) - 2010
GENERAL ORGANIC CHEMISTRY
232011
Which of the following structures represents a chiral compound?
1
2
3
4
Explanation:
The chiral C-atom is the one in which four different groups/atoms are attached.
AMU-2018
GENERAL ORGANIC CHEMISTRY
232013
Which of the following complexes can also represent facial (fac) and meridional (mer) isomers?
(D) : The octahedral complex $\left[\mathrm{CO}\left(\mathrm{NH}_{3}\right)_{3}\left(\mathrm{NO}_{2}\right)_{3}\right]$ Show facial (fac) and meridonial (mer) isomers are-
AMU-2016
GENERAL ORGANIC CHEMISTRY
232014
Maximum number of $\sigma$-bonds that may be present in an isomer of $\mathrm{C}_{4} \mathrm{H}_{8}$ are
1 10
2 11
3 12
4 13
Explanation:
Maximum no. of $\sigma$ bond that may present in an isomer of $\mathrm{C}_{4} \mathrm{H}_{8}$. Total no. of $\sigma$ bond is 11 .
