JEE Main 2026 Chemistry question
If the half life of a first order reaction is 6.93 minutes then the time required for completion of 99% of the reaction will be minutes. (Given: log 2 = 0.3010)
Answer: 46.06
Solution
k=ln2/6.93=0.1 min⁻¹. Time for 99% completion: t=ln(100)/k = 4.606/0.1 = 46.06 min.