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प्रश्न
Why dextro and laevo rotatory isomers of Butan-2-ol are difficult to separate by fractional distillation?
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उत्तर
Dextro and laevorotatory isomers of butane-2-ol are difficult to separate by fractional distillation because of no difference in boiling points of these two rotatory isomers.
\[\begin{array}{cc}
\phantom{.......}\ce{OH}\\
\phantom{.....}|\\
\ce{\underset{\text{Butan-2-ol}}{CH3-CH2-CH-CH3}}
\end{array}\]
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संबंधित प्रश्न
Out of 
and 
, which one is optically active and why ?
The pair [Co(NH3)5(SO4)]Br and [Co(NH3)5Br]SO4 exhibits ____________ isomerism
How many isomers are possible for an alkane having molecular formula C5H12?
The number of geometrical isomers of [CrCl2(en)2]+ is ____________.
Consider the two complexes given below:
\[\ce{\underset{(I)}{[Co(NH3)5SO4]Br}}\] and \[\ce{\underset{(II)}{[Co(NH3)5Br]SO4}}\]
I and II are ____________ isomers.
Which of the following compound is optically active?
Match the pairs in column I (pairs of isomers) and column II (types of isomers)
| Column I (Pairs of isomers) |
Column II (Types of isomers) |
| (A) [Cr(H2O)5Cl]Cl2.H2O and [Cr(H2O)4Cl2]Cl.2H2O | (i) Ionization isomers |
| (B) [Co(en)2(NO2)2]+ and [Co(en)2(ONO2)]+ | (ii) Hydrate isomers |
| (C) [Co(NH3)6] [Cr(CN)6] and [Cr(NH3)6] [Co(CN)6] | (iii) Linkage isomers |
| (D) [Pt(NH3)4Cl2] Br2 and [Pt(NH3)4Br2]Cl2 | (iv) Coordination isomers |
The co-ordination number of Co3+ ion in the complex [Co(NH3)4Cl2]⊕ is ______.
Name the type of isomerism exhibited by the following pair of compounds:
[Co(NH3)5(ONO)]Cl2 and [Co(NH3)5(NO2)]Cl2
Match List-I with List-II:
| List-I (Complex) |
List-II (Type of isomerism) |
| A. [Co(NH3)5(NO2)]Cl2 | I. Solvate isomerism |
| B. [Co(NH3)5(SO4)]Br | II. Linkage isomerism |
| C. [Co(NH3)6][Cr(CN)6] | III. Ionisation isomerism |
| D. [Co(H2O)6]Cl3 | IV. Coordination isomerism |
Choose the correct answer from the options given below:
