Hi Revanth,

The JEE Mains will be held from April 7 to April 20. The paper 2 will be held on 7th of April while paper 1 to be held on 8th, 9th, 10th and 12th 

Here is the link to April,8th 2019 mains chemistry question paper with answer key : https://static.careers360.mobi/media/uploads/froala_editor/files/resonance-ac-in-answer-key-solutions-JEE-Main-2019-April-8-shift-1-chemistry.pdf