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For a zero order reaction , the plot ...

For a zero order reaction , the plot of concentration of reactant vs time is (intercept refers to concentration axis )

A

a) linear with + ve slope and zero intercept

B

b) linear with - ve slope and zero intercept

C

c) linear with - ve slope and non - zero intercept

D

d) linear with +ve slope and non - zero intercept

Text Solution

Verified by Experts

The correct Answer is:
C
For a zero order reaction , the plot of concentration of reactant vs time is a straight line (linear) with a negative slope and non -zero intercept .
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Knowledge Check

  • Assertion :For a first order reaction, the concentration of the reactant decreases exponentially with time. Reason: Rate of reaction at any time depends upon the concentration of the reactant at that time.

    A
    If both (A) and (R) are correct and (R) is the correct explanation of (A)
    B
    If both (A) and (R) are correct, but (R) is not the correct explanation of (A).
    C
    If (A) is correct, but (R) is incorrect.
    D
    If both (A) and (R) are incorrect.

  • Statement 1: If in a zero order reaction, the concentration of the reactant is doubled. The half-life period is also doubled. Statement 2: For a zero order reaction, the rate of reaction is independent of initial concentration.

    A
    Statement 1 is True, statement 2 is True, Statement 2 is Correct explanation for Statement 1.
    B
    Statement 1 is True, Statement 2 is True, Statement 2 is NOT a correct explanation for Statement 1.
    C
    Statement is True, Statement 2 is False.
    D
    Statement is False, Statement 2 is True.

  • Assertion If in a zero order reaction, the concentration of the reactant is doubled. The half-life period is also doubled. Reason: For a zero order reaction, the rate of reaction is independent of initial concentration.

    A
    If both (A) and (R) are correct and (R) is the correct explanation of (A)
    B
    If both (A) and (R) are correct, but (R) is not the correct explanation of (A).
    C
    If (A) is correct, but (R) is incorrect.
    D
    If both (A) and (R) are incorrect.

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    Assertion : In a zero order reaction, if concentration of the reactant is doubled, half-life period is also doubled. Reason: The total time taken for a zero order reaction to complete is double of the half-life period.

    Assertion: The decomposition of gaseous ammonia on a hot platinum surface is a zero order reaction at high pressure. Reason: For a zero order reaction, the rate of reaction is independent of initial concentration.

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