Question

can anyone help me?
this question is from chemistry subject 9th class (Sri Chaitanya)school CBSE board syllabus
topic chemical kinetics
don't give worest answers okk I will report ​

Answer 1

Answer:

I am not able to get correct answer for 1 st question

but,

2.

t1/2proportional to 'a'

Answer 2

Answer:

thank u so much.........