Question

time taken for first order rxn, 2 reduce initial conc. by factor of 1/4 is 10min.if the conc. is reduced to 1/16 then the time required is?

Answer 1

HEY
HERE IS YOUR ANSWER
================================
LET THE INITIAL CONC. BE 1
now to reduce initial conc. by 1/4 is 10 min. therefore to reduce it to 1/2 it will be 5min. this means its half life is 5 min

now,
1------>1/2---------->1/4--------->1/8---------->1/16
to reduce it to 1/16 we need 4 half times that is 4*5=20 min
==========================
HOPE THIS HELPS
PLEASE MARK IT AS BRAINLIEST