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प्रश्न
Why is Butan-1-ol optically inactive but Butan-2-ol is optically active?
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उत्तर
Butan-2-ol has a chiral centre, that is, butan-2-ol has a carbon atom bonded to four different substituents.
Thus, it is optically active. On the other hand, butan-1-ol does not have any chiral carbon atoms.
Therefore, it is optically inactive.
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संबंधित प्रश्न
Draw one of the geometrical isomers of the complex [Pt(en)2Cl2]2+ which is optically active.
Indicate the types of isomerism exhibited by the following complex and draw the structures for these isomers:
[Co(en)3]Cl3
Indicate the types of isomerism exhibited by the following complex and draw the structures for these isomers:
[Co(NH3)5(NO2)](NO3)2
Draw all the isomers (geometrical and optical) of [Co(NH3)Cl(en)2]2+.
What type of structural isomers are [Co(NH3)5 Br] SO4 and [Co(NH3)5 SO4]Br? Give a chemical test to distinguish the isomers.
Identify the optically active compounds from the following:
(i) \[\ce{[Co(en)3]^{3+}}\]
(ii) \[\ce{[trans - [Co(en)2Cl2]^+}\]
(iii) \[\ce{cis - [Co(en)2Cl2]^+}\]
(iv) \[\ce{[Cr(NH3)5Cl]}\]
Which of the following molecules has a chiral centre correctly labelled with an asterisk (*)?
Assertion (A): Trans [CrCl2(ox)2]3− shows optical isomerism.
Reason (R): Optical isomerism is common in octahedral complexes involving didentate ligands.
Assertion: Addition of bromine water to 1-butene gives two optical isomers.
Reason: The product formed contains two asymmetric carbon atoms.
Indicate the type of isomerism exhibited by the following complex and draw the structure for this isomer:
[Pt(NH3)(H2O)Cl2]
