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Aim

Theory

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Procedure

Simulation

Posttest

References

Contributors

Feedback

Laurent's half shade polarimeter: To determine the specific rotation of optically active substance

Choose difficulty:

Beginner

Intermediate

Advanced

Rotation occurred in the plane polarized light can be measure by

a: Tachometer Explanation

Explanation

b: Polarimeter Explanation

Explanation

c: Viscometer Explanation

Explanation

d: Manometer Explanation

Explanation

The change in optical rotation with the time of freshly prepared solution of optically active solution is known as

a: Mutual rotation Explanation

Explanation

b: Specific rotation Explanation

Explanation

c: Inversion Explanation

Explanation

d: Rotatory motion Explanation

Explanation

Which of the following is a true statement?

a: Specific rotation is independent of concentration Explanation

Explanation

b: Observed rotation is independent of light path of the polarimeter Explanation

Explanation

c: Observed rotation is independent of concentration Explanation

Explanation

d: Observed rotation is independent of light path of the polarimeter and concentration both Explanation

Explanation

What is the effect of the length of the tube on the observed rotation, if length of the tube gets double?

a: Observed rotation gets double Explanation

Explanation

b: Observed rotation gets halved Explanation

Explanation

c: Observed rotation gets four times Explanation

Explanation

d: Observed rotation remains unaffected Explanation

Explanation

Select the correct unit of specific rotation?

a: degree/decimeter/gm/cc Explanation

Explanation

b: decimeter/gm/cc/degree Explanation

Explanation

c: gm/cc/degree/decimeter Explanation

Explanation

d: cc/degree/decimeter/gm Explanation

Explanation

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