Published by:
CGP EDU Academic Team
Published on: August 14, 2026
For a first order reaction A 
B + 2C + 3D (A is optically inactive and B, C and D are dextrorotary), the optical rotation at time t and 
are rt and 
respectively, the expression for rate constant is
A
B
C
D
None of these
Text Solution
Verified by ExpertsThe correct answer is:
B
Optical Nrotation – 
Optical rotation at t = 0 is zero.
Optical rotation at time = t is
(x. θ 1 + 2x. θ 2 + 3x. θ 3).
Optical rotation at time = ∞ is
(a. θ 1 + 2a. θ 2 + 3a. θ 3).
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