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Chemistry · PYQ NEET UG 2023
हिन्दीFor a certain reaction, the rate \( = k[\text{A}]^2[\text{B}] \), when the initial concentration of A is tripled keeping concentration of B constant, the initial rate would
Correct answer · Option B
increase by a factor of nine.
Explanation
Initial rate \( r_1 = k[\text{A}]^2[\text{B}] \). When \( [\text{A}] \) is tripled, new rate \( r_2 = k(3\text{A})^2[\text{B}] = 9k[\text{A}]^2[\text{B}] = 9r_1 \). Thus, rate increases by a factor of nine.
