- 1(current)
Q. No.The (R)- and (S)-enantiomers of an optically active compound differ in:
1. their solubility in a chiral solvent
2. their reactivity with a chiral reagent
3. their optical rotation of plane polarised light
4. their melting points
| a. |  |
b. |  |
| c. |  |
d. |  |
| e. |  |
||
2. (a), (c), and (b)
3. (a), (d), and (e)
4. (c), (d) and (e)
Geometrical isomerism is caused:
| 1. | By restricted rotation around C=C bond. |
| 2. | By the presence of one asymmetric carbon atom. |
| 3. | Due to different groups attached to the same functional group. |
| 4. | By swing of hydrogen atom between two polyvalent atoms. |
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Compounds which rotate plane polarised light clockwise direction are known as:
1. Dextrorotatory
2. Laevorotatory
3. Optically inactive compounds
4. Racemic mixture
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Which of the following structures permits cis-trans isomerism?
1. X2C=CY2
2. XYC=CZ2
3. X2C=CXY
4. XYC=CXY
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If optical rotation produced by the compound (i) is +52° then that produced by that the compound (ii) is:
1. -52° 2. +52°
3. 0° 4. unpredictable
- 1(current)
Q. No.
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