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JEE Advanced 2021 Paper 2

Section: Chemistry

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Question : 22

Total: 57

For the following reaction 2X+Y

P
the rate of reaction is ‌

=k[X]. Two moles of X are mixed with one mole of Y to make 1.0 Lof solution. At 50s, 0.5 mole of Y is left in the reaction mixture. The correct statement(s) about the reaction is(are)
(Use: ln‌2=0.693 )

[JEE Adv 2021 P2]

The rate constant, k, of the reaction is 13.86×10−4s−1.
Half-life of X is 50s.
At 50s,−‌
d[X]
dt
=13.86×10−3molL−1s−1.
At 100s,−‌
d[Y]
dt
=3.46×10−3molL−1s−1.

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