@Safdar He said that there was a mistake. If conc. H2SO4 and heat is given then my answer is correct but if only heat is given then his answer is correct. When I asked why he said aisa hi hota hai
Alright.. That was what I was saying.. The issue is that to disprove someone you need actual experimental data. So, it is hard to answer your question.
Can I answer with this? But there is no doubt now tho' is there?? :)