List of top Chemistry Questions on Half life asked in MHT CET

What is half life of a first order reaction if time required to decrease concentration of reactant from 0.4 M to 0.1 M is $x$ hour?

If half life of a first order reaction is 10 minutes, find the time required to decrease concentration of reactant from $0.08 \text{ M}$ to $0.02 \text{ M}$.

What is rate constant of a first order reaction having half life \(138.6 \text{ minute}\)?

If half life of a first order reaction is 10 minutes, find the time required to decrease concentration of reactant from $0.08 \text{ M}$ to $0.02 \text{ M}$.

Calculate the half-life of a first order reaction if the rate constant of the reaction is $2.772 \times 10^{-3}\,\text{s}^{-1}$.

The half-life of a first order reaction is 6.0 hours. How long does it take for 60% of the reactant to disappear?