TS EAMCET 7 May 2018 Shift 1 Solved Paper

The rate of first order reaction is shown below.
Rate=−

Δ[A]

Δt

=k[A]
The above equation shows that the plot must be a straight linewith a negative slope on consideration of concentration of reactant.
For a first order reaction, the half-life does not depend upon the concentration.
Therefore, the correct plots are shown below.