232060
Which of the following compound is optically inactive?
1 3 - chloro but - 1 - ene
2 2,3-Dichloro butane
3 2 -Hydroxypropanoic acid
4 2,2 - Dichloro pentane
Explanation:
(D): By option 2, 2 dichlropentane is optically active as none of the $\mathrm{C}$ atom is achiral Note - A chiral C-atom is C-atom attached to-four different groups. Such $\mathrm{C}$ atom is marked with asterik
GUJCET-2018
GENERAL ORGANIC CHEMISTRY
232061
How many chiral compounds are possible on monochlorination of 2- methylbutane?
1 2
2 4
3 6
4 8
Explanation:
During the monochlorination of 2-methyl butane four compound are possible. However only two of them will be chiral in nature. I \& III are chiral
HP CET-2018
GENERAL ORGANIC CHEMISTRY
232063
Ozonolysis of an organic compound gives formaldehyde as one of the products. This confirms the presence of :
1 Two ethylenic double bonds
2 A vinyl group
3 An iso propyl group
4 An acetylenic triple bond
Explanation:
(B): As we know that presence of one vinyl (or ethenyl) group gives formaldehyde as one of the product in Ozonolysis is. So, $\mathrm{CH}_{2}=\mathrm{CH}$ on ozonolysis will give $\mathrm{CHO}$
AIEEE 2011
GENERAL ORGANIC CHEMISTRY
232064
Of the five isomeric hexanes, the isomer which can give two monochlorinated compounds, is :
1 2-methylpentane
2 2,2-dimethylbutane
3 2,3-dimethylbutane
4 n-hexane
Explanation:
(C): 2, 3-dimethyl butane has 2 types of hydrogens and hence give two menochlorinated compounds. 2,3-dimethyl butane
AIEEE 2005
GENERAL ORGANIC CHEMISTRY
232080
The number of stereoisomers possible for 1, 2dimethylcyclopropane is
1 one
2 four
3 two
4 three
Explanation:
Number of stereoisomers possible for 1,2 dimethyl cyclo propane No of stereoisomer $=$ sum of geometrical isomer \& stereoisomer There are three possible isomer of 1,2 dimethyl cyclopropane
232060
Which of the following compound is optically inactive?
1 3 - chloro but - 1 - ene
2 2,3-Dichloro butane
3 2 -Hydroxypropanoic acid
4 2,2 - Dichloro pentane
Explanation:
(D): By option 2, 2 dichlropentane is optically active as none of the $\mathrm{C}$ atom is achiral Note - A chiral C-atom is C-atom attached to-four different groups. Such $\mathrm{C}$ atom is marked with asterik
GUJCET-2018
GENERAL ORGANIC CHEMISTRY
232061
How many chiral compounds are possible on monochlorination of 2- methylbutane?
1 2
2 4
3 6
4 8
Explanation:
During the monochlorination of 2-methyl butane four compound are possible. However only two of them will be chiral in nature. I \& III are chiral
HP CET-2018
GENERAL ORGANIC CHEMISTRY
232063
Ozonolysis of an organic compound gives formaldehyde as one of the products. This confirms the presence of :
1 Two ethylenic double bonds
2 A vinyl group
3 An iso propyl group
4 An acetylenic triple bond
Explanation:
(B): As we know that presence of one vinyl (or ethenyl) group gives formaldehyde as one of the product in Ozonolysis is. So, $\mathrm{CH}_{2}=\mathrm{CH}$ on ozonolysis will give $\mathrm{CHO}$
AIEEE 2011
GENERAL ORGANIC CHEMISTRY
232064
Of the five isomeric hexanes, the isomer which can give two monochlorinated compounds, is :
1 2-methylpentane
2 2,2-dimethylbutane
3 2,3-dimethylbutane
4 n-hexane
Explanation:
(C): 2, 3-dimethyl butane has 2 types of hydrogens and hence give two menochlorinated compounds. 2,3-dimethyl butane
AIEEE 2005
GENERAL ORGANIC CHEMISTRY
232080
The number of stereoisomers possible for 1, 2dimethylcyclopropane is
1 one
2 four
3 two
4 three
Explanation:
Number of stereoisomers possible for 1,2 dimethyl cyclo propane No of stereoisomer $=$ sum of geometrical isomer \& stereoisomer There are three possible isomer of 1,2 dimethyl cyclopropane
232060
Which of the following compound is optically inactive?
1 3 - chloro but - 1 - ene
2 2,3-Dichloro butane
3 2 -Hydroxypropanoic acid
4 2,2 - Dichloro pentane
Explanation:
(D): By option 2, 2 dichlropentane is optically active as none of the $\mathrm{C}$ atom is achiral Note - A chiral C-atom is C-atom attached to-four different groups. Such $\mathrm{C}$ atom is marked with asterik
GUJCET-2018
GENERAL ORGANIC CHEMISTRY
232061
How many chiral compounds are possible on monochlorination of 2- methylbutane?
1 2
2 4
3 6
4 8
Explanation:
During the monochlorination of 2-methyl butane four compound are possible. However only two of them will be chiral in nature. I \& III are chiral
HP CET-2018
GENERAL ORGANIC CHEMISTRY
232063
Ozonolysis of an organic compound gives formaldehyde as one of the products. This confirms the presence of :
1 Two ethylenic double bonds
2 A vinyl group
3 An iso propyl group
4 An acetylenic triple bond
Explanation:
(B): As we know that presence of one vinyl (or ethenyl) group gives formaldehyde as one of the product in Ozonolysis is. So, $\mathrm{CH}_{2}=\mathrm{CH}$ on ozonolysis will give $\mathrm{CHO}$
AIEEE 2011
GENERAL ORGANIC CHEMISTRY
232064
Of the five isomeric hexanes, the isomer which can give two monochlorinated compounds, is :
1 2-methylpentane
2 2,2-dimethylbutane
3 2,3-dimethylbutane
4 n-hexane
Explanation:
(C): 2, 3-dimethyl butane has 2 types of hydrogens and hence give two menochlorinated compounds. 2,3-dimethyl butane
AIEEE 2005
GENERAL ORGANIC CHEMISTRY
232080
The number of stereoisomers possible for 1, 2dimethylcyclopropane is
1 one
2 four
3 two
4 three
Explanation:
Number of stereoisomers possible for 1,2 dimethyl cyclo propane No of stereoisomer $=$ sum of geometrical isomer \& stereoisomer There are three possible isomer of 1,2 dimethyl cyclopropane
232060
Which of the following compound is optically inactive?
1 3 - chloro but - 1 - ene
2 2,3-Dichloro butane
3 2 -Hydroxypropanoic acid
4 2,2 - Dichloro pentane
Explanation:
(D): By option 2, 2 dichlropentane is optically active as none of the $\mathrm{C}$ atom is achiral Note - A chiral C-atom is C-atom attached to-four different groups. Such $\mathrm{C}$ atom is marked with asterik
GUJCET-2018
GENERAL ORGANIC CHEMISTRY
232061
How many chiral compounds are possible on monochlorination of 2- methylbutane?
1 2
2 4
3 6
4 8
Explanation:
During the monochlorination of 2-methyl butane four compound are possible. However only two of them will be chiral in nature. I \& III are chiral
HP CET-2018
GENERAL ORGANIC CHEMISTRY
232063
Ozonolysis of an organic compound gives formaldehyde as one of the products. This confirms the presence of :
1 Two ethylenic double bonds
2 A vinyl group
3 An iso propyl group
4 An acetylenic triple bond
Explanation:
(B): As we know that presence of one vinyl (or ethenyl) group gives formaldehyde as one of the product in Ozonolysis is. So, $\mathrm{CH}_{2}=\mathrm{CH}$ on ozonolysis will give $\mathrm{CHO}$
AIEEE 2011
GENERAL ORGANIC CHEMISTRY
232064
Of the five isomeric hexanes, the isomer which can give two monochlorinated compounds, is :
1 2-methylpentane
2 2,2-dimethylbutane
3 2,3-dimethylbutane
4 n-hexane
Explanation:
(C): 2, 3-dimethyl butane has 2 types of hydrogens and hence give two menochlorinated compounds. 2,3-dimethyl butane
AIEEE 2005
GENERAL ORGANIC CHEMISTRY
232080
The number of stereoisomers possible for 1, 2dimethylcyclopropane is
1 one
2 four
3 two
4 three
Explanation:
Number of stereoisomers possible for 1,2 dimethyl cyclo propane No of stereoisomer $=$ sum of geometrical isomer \& stereoisomer There are three possible isomer of 1,2 dimethyl cyclopropane
232060
Which of the following compound is optically inactive?
1 3 - chloro but - 1 - ene
2 2,3-Dichloro butane
3 2 -Hydroxypropanoic acid
4 2,2 - Dichloro pentane
Explanation:
(D): By option 2, 2 dichlropentane is optically active as none of the $\mathrm{C}$ atom is achiral Note - A chiral C-atom is C-atom attached to-four different groups. Such $\mathrm{C}$ atom is marked with asterik
GUJCET-2018
GENERAL ORGANIC CHEMISTRY
232061
How many chiral compounds are possible on monochlorination of 2- methylbutane?
1 2
2 4
3 6
4 8
Explanation:
During the monochlorination of 2-methyl butane four compound are possible. However only two of them will be chiral in nature. I \& III are chiral
HP CET-2018
GENERAL ORGANIC CHEMISTRY
232063
Ozonolysis of an organic compound gives formaldehyde as one of the products. This confirms the presence of :
1 Two ethylenic double bonds
2 A vinyl group
3 An iso propyl group
4 An acetylenic triple bond
Explanation:
(B): As we know that presence of one vinyl (or ethenyl) group gives formaldehyde as one of the product in Ozonolysis is. So, $\mathrm{CH}_{2}=\mathrm{CH}$ on ozonolysis will give $\mathrm{CHO}$
AIEEE 2011
GENERAL ORGANIC CHEMISTRY
232064
Of the five isomeric hexanes, the isomer which can give two monochlorinated compounds, is :
1 2-methylpentane
2 2,2-dimethylbutane
3 2,3-dimethylbutane
4 n-hexane
Explanation:
(C): 2, 3-dimethyl butane has 2 types of hydrogens and hence give two menochlorinated compounds. 2,3-dimethyl butane
AIEEE 2005
GENERAL ORGANIC CHEMISTRY
232080
The number of stereoisomers possible for 1, 2dimethylcyclopropane is
1 one
2 four
3 two
4 three
Explanation:
Number of stereoisomers possible for 1,2 dimethyl cyclo propane No of stereoisomer $=$ sum of geometrical isomer \& stereoisomer There are three possible isomer of 1,2 dimethyl cyclopropane
