11th Chemistry Question Paper Tamil Medium. We covered all the 11th Chemistry Question Paper Tamil Medium MCQs in this post for free so that you can practice well for the exam.
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11th Chemistry Objective Question Paper Tamil Medium for Students
If the rate constant for a first-order reaction is k, the time (t) required for the completion of 99% of the reaction is given by:
(A) t = 6.909/k
(B) t = 4.606/k
(C) t = 2.303/k
(D) t = 0.693/k
Option b - t = 4.606/k
Under isothermal conditions, a gas at 300 K expands from 0.1 L to 0.25 L against a constant external pressure of 2 bar. The work done by the gas is (Given that 1 L bar = 100 J):
(A) 5 kJ
(B) 25 J
(C) -30 J
(D) 30 J
Option d - 30 J
Enzymes that utilize ATP in phosphate transfer require an alkaline earth metal (M) as the cofactor. M is:
(A) Mg
(B) Ca
(C) Sr
(D) Be
Option a - Mg
The mixture that forms the maximum boiling azeotrope is:
(A) Ethanol + water
(B) Acetone + carbon disulphide
(C) Heptane + Octane
(D) Water + nitric acid
Option d - Water + nitric acid
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