Engineering
Chemistry
Alkene
Question

Plane polarized light is passed from the container after these reactions are completed select correct option.

Optical rotation is observed in container P only.

No optical rotation is observed in container P as well as container Q

Optical rotation is observed in both the containers.

Optical rotation is observed in container Q only.

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Solution

Plane polarized light rotation occurs only with chiral (asymmetric) molecules that are optically active. Container P has sucrose hydrolysis producing glucose and fructose, both chiral and optically active. Container Q has NaCl formation from NaOH and HCl, producing a symmetric, achiral salt with no optical activity.

Key reaction in P: C12H22O11+H2OC6H12O6+C6H12O6 (glucose and fructose).

Final answer: Optical rotation is observed in container P only.