For a zero order reaction, if initial concentration is reduced to ½ of the initial concentration, the time taken for half the reaction to complete
Remains same
Becomes 4 times
Becomes ½ times
Doubles
For a zero order reaction,
t½ is given by Ao/2K where Ao is initial concentration.
Since, t½ is directly proportional to the initial concentration, it shall become 1/2 .
Study 40% syllabus and score up to 100% marks in JEE