CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317619
Assertion : Propadiene is optically inactive. Reason : Propadiene has a plane of symmetry.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
1,2-propadiene \(\left(\mathrm{CH}_{2}=\mathrm{C}=\mathrm{CH}_{2}\right)\) is opticallyinactive because the terminal \(\mathrm{sp}^{2}\)-hybridised carbons have the same atoms i.e, \(\mathrm{H}\)-atoms. As a result, it has a plane of symmetry passing through the three carbon atoms and hence the molecule is optically inactive. So , the option (1) is correct.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317620
Which one of the following acids does not exhibit optical isomerism?
1 Lactic acid
2 Tartaric acid
3 Maleic acid
4 \(\alpha\)-amino acids
Explanation:
Optical isomers contain an asymmetric (chiral) carbon atom ( a carbon atom attached to four different atoms or groups). Therefore all except maleic acid exhibit optical isomerism.
JEE - 2014
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317621
A pair of compounds having the same boiling points are
1 benzene and naphthalene
2 (+) Butan-2-ol and (-) Butan-2-ol
3 cis But-2-ene and trans But-2-ene
4 n-hexane and neo-hexane
Explanation:
d' and 'l' isomers (enantiomers) have same physical properties i.e., B.P. (+) Butane-2-ol and (-) Butan-2-ol are enantiomers. So, have same B.P.
KCET - 2023
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317622
What is the relationship between the compound shown?
1 Same compound
2 Enantiomers
3 Diastereomers
4 Structural isomers
Explanation:
First one is 3 - methyl - 2 - pentanol while second one is 2 - methyl - 3-pentanol, hence, they are positional isomers i.e., structural isomers.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317623
Optically active isomers but not mirror images are called
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317619
Assertion : Propadiene is optically inactive. Reason : Propadiene has a plane of symmetry.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
1,2-propadiene \(\left(\mathrm{CH}_{2}=\mathrm{C}=\mathrm{CH}_{2}\right)\) is opticallyinactive because the terminal \(\mathrm{sp}^{2}\)-hybridised carbons have the same atoms i.e, \(\mathrm{H}\)-atoms. As a result, it has a plane of symmetry passing through the three carbon atoms and hence the molecule is optically inactive. So , the option (1) is correct.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317620
Which one of the following acids does not exhibit optical isomerism?
1 Lactic acid
2 Tartaric acid
3 Maleic acid
4 \(\alpha\)-amino acids
Explanation:
Optical isomers contain an asymmetric (chiral) carbon atom ( a carbon atom attached to four different atoms or groups). Therefore all except maleic acid exhibit optical isomerism.
JEE - 2014
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317621
A pair of compounds having the same boiling points are
1 benzene and naphthalene
2 (+) Butan-2-ol and (-) Butan-2-ol
3 cis But-2-ene and trans But-2-ene
4 n-hexane and neo-hexane
Explanation:
d' and 'l' isomers (enantiomers) have same physical properties i.e., B.P. (+) Butane-2-ol and (-) Butan-2-ol are enantiomers. So, have same B.P.
KCET - 2023
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317622
What is the relationship between the compound shown?
1 Same compound
2 Enantiomers
3 Diastereomers
4 Structural isomers
Explanation:
First one is 3 - methyl - 2 - pentanol while second one is 2 - methyl - 3-pentanol, hence, they are positional isomers i.e., structural isomers.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317623
Optically active isomers but not mirror images are called
NEET Test Series from KOTA - 10 Papers In MS WORD
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CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317619
Assertion : Propadiene is optically inactive. Reason : Propadiene has a plane of symmetry.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
1,2-propadiene \(\left(\mathrm{CH}_{2}=\mathrm{C}=\mathrm{CH}_{2}\right)\) is opticallyinactive because the terminal \(\mathrm{sp}^{2}\)-hybridised carbons have the same atoms i.e, \(\mathrm{H}\)-atoms. As a result, it has a plane of symmetry passing through the three carbon atoms and hence the molecule is optically inactive. So , the option (1) is correct.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317620
Which one of the following acids does not exhibit optical isomerism?
1 Lactic acid
2 Tartaric acid
3 Maleic acid
4 \(\alpha\)-amino acids
Explanation:
Optical isomers contain an asymmetric (chiral) carbon atom ( a carbon atom attached to four different atoms or groups). Therefore all except maleic acid exhibit optical isomerism.
JEE - 2014
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317621
A pair of compounds having the same boiling points are
1 benzene and naphthalene
2 (+) Butan-2-ol and (-) Butan-2-ol
3 cis But-2-ene and trans But-2-ene
4 n-hexane and neo-hexane
Explanation:
d' and 'l' isomers (enantiomers) have same physical properties i.e., B.P. (+) Butane-2-ol and (-) Butan-2-ol are enantiomers. So, have same B.P.
KCET - 2023
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317622
What is the relationship between the compound shown?
1 Same compound
2 Enantiomers
3 Diastereomers
4 Structural isomers
Explanation:
First one is 3 - methyl - 2 - pentanol while second one is 2 - methyl - 3-pentanol, hence, they are positional isomers i.e., structural isomers.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317623
Optically active isomers but not mirror images are called
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317619
Assertion : Propadiene is optically inactive. Reason : Propadiene has a plane of symmetry.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
1,2-propadiene \(\left(\mathrm{CH}_{2}=\mathrm{C}=\mathrm{CH}_{2}\right)\) is opticallyinactive because the terminal \(\mathrm{sp}^{2}\)-hybridised carbons have the same atoms i.e, \(\mathrm{H}\)-atoms. As a result, it has a plane of symmetry passing through the three carbon atoms and hence the molecule is optically inactive. So , the option (1) is correct.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317620
Which one of the following acids does not exhibit optical isomerism?
1 Lactic acid
2 Tartaric acid
3 Maleic acid
4 \(\alpha\)-amino acids
Explanation:
Optical isomers contain an asymmetric (chiral) carbon atom ( a carbon atom attached to four different atoms or groups). Therefore all except maleic acid exhibit optical isomerism.
JEE - 2014
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317621
A pair of compounds having the same boiling points are
1 benzene and naphthalene
2 (+) Butan-2-ol and (-) Butan-2-ol
3 cis But-2-ene and trans But-2-ene
4 n-hexane and neo-hexane
Explanation:
d' and 'l' isomers (enantiomers) have same physical properties i.e., B.P. (+) Butane-2-ol and (-) Butan-2-ol are enantiomers. So, have same B.P.
KCET - 2023
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317622
What is the relationship between the compound shown?
1 Same compound
2 Enantiomers
3 Diastereomers
4 Structural isomers
Explanation:
First one is 3 - methyl - 2 - pentanol while second one is 2 - methyl - 3-pentanol, hence, they are positional isomers i.e., structural isomers.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317623
Optically active isomers but not mirror images are called
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317619
Assertion : Propadiene is optically inactive. Reason : Propadiene has a plane of symmetry.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
1,2-propadiene \(\left(\mathrm{CH}_{2}=\mathrm{C}=\mathrm{CH}_{2}\right)\) is opticallyinactive because the terminal \(\mathrm{sp}^{2}\)-hybridised carbons have the same atoms i.e, \(\mathrm{H}\)-atoms. As a result, it has a plane of symmetry passing through the three carbon atoms and hence the molecule is optically inactive. So , the option (1) is correct.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317620
Which one of the following acids does not exhibit optical isomerism?
1 Lactic acid
2 Tartaric acid
3 Maleic acid
4 \(\alpha\)-amino acids
Explanation:
Optical isomers contain an asymmetric (chiral) carbon atom ( a carbon atom attached to four different atoms or groups). Therefore all except maleic acid exhibit optical isomerism.
JEE - 2014
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317621
A pair of compounds having the same boiling points are
1 benzene and naphthalene
2 (+) Butan-2-ol and (-) Butan-2-ol
3 cis But-2-ene and trans But-2-ene
4 n-hexane and neo-hexane
Explanation:
d' and 'l' isomers (enantiomers) have same physical properties i.e., B.P. (+) Butane-2-ol and (-) Butan-2-ol are enantiomers. So, have same B.P.
KCET - 2023
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317622
What is the relationship between the compound shown?
1 Same compound
2 Enantiomers
3 Diastereomers
4 Structural isomers
Explanation:
First one is 3 - methyl - 2 - pentanol while second one is 2 - methyl - 3-pentanol, hence, they are positional isomers i.e., structural isomers.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317623
Optically active isomers but not mirror images are called
