When two reactants, A andamp; B are mixed to give pr... moreoducts C andamp; D, the reaction quotient Q, at the initial stages of the reactiona)is zerob)decreases with timec)is independent of timed)increases with timeCorrect answer is option 'A'. Can you explain this answer?

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When two reactants, A & B are mixed to give pr

oducts C & D, the reaction quotient Q, at the initial stages of the reaction
a)is zero
b)decreases with time
c)is independent of time
d)increases with time
Correct answer is option 'A'. Can you explain this answer?

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JEE Advanced (Single Correct MCQs): Equilibrium

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When two reactants, A & B are mixed to give pr... moreoducts C &am...

Answer:
The reaction quotient Q is zero at the initial stage of the reaction.
(a) is correct.
Explanation:
Given that,
A+B⇄C+D
Initially, the concentration are only of A and B and the concentration of C and D is zero.
Initially, The concentration of A and B are high.
The quotient is

When the reaction get start , The concentration of A and B get decrease and the concentration of C and D get increase with the time.
So, The reaction quotient Q is zero at the initial stage of the reaction because the concentration of the products C and D is zero.
Hence, The reaction quotient Q is zero at the initial stage of the reaction.

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When two reactants, A & B are mixed to give pr... moreoducts C & D, the reaction quotient Q, at the initial stages of the reactiona)is zerob)decreases with timec)is independent of timed)increases with timeCorrect answer is option 'A'. Can you explain this answer?

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