Experts can i have the answer for the 19 th question

Kindly refer to the following link:
https://www.meritnation.com/ask-answer/question/how-does-h2o2-behave-as-a-bleaching-agent/hydrogen/6300883  

https://www.meritnation.com/ask-answer/question/what-is-auto-pyrolysis-of-water/hydrocarbons/1827015

Kindly post remaining query in next thread.