Guru Chem Academy is Best Chemistry Coaching. (https://www.guruchemacademy.in)

Best Chemistry App in this Wrold (https://play.google.com/store/apps/details?id=co.martin.qkzrf)

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IIT JAM, CSIR NET,JRF, best chemistry coaching institute in jaipur(https://www.guruchemacademy.in),

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Guru Chem Academy is Best Chemistry Coaching (https://www.guruchemacademy.in) .

Best Chemistry App in this Wrold (https://play.google.com/store/apps/details?id=co.martin.qkzrf)

Best NET coaching, Best IIT JAM coaching center, Best UGC NET, best coaching,

IIT JAM, CSIR NET,JRF, best chemistry coaching institute in jaipur(https://www.guruchemacademy.in),

NET coaching in jaipur, IIT JAM coaching center, UGC NET

There are many available. For various chapters you can refer to different people. Some of the best channels that I can recommend you to at least build your basics very very strong of organic chemistry then initially it is the Careers360 NEET knockout page which provides all the essential videos and notes to build your concepts well and also help you always your chemistry strong. Below is the link for same..
https://learn.careers360.com/knockout-neet-may/

Some other YouTube channels are Physics Wallah by Alakh Pandey. He has covered a lot of CHEMISTRY basic concepts and also a lot of tips and tricks that will help you build the basics strong. Santosh Yadav, Arun Singh and Biju sir's ACE CHEMISTRY ACADEMY channel is also well known since it provides a complete understanding of the subject.

Refer to these websites below this will provide you all the answers of ncert chemistry questions - physical, organic and Inorgamic all 3.

https://learn.careers360.com/ncert/ncert-solutions-class-11-chemistry/

https://school.careers360.com/ncert/ncert-solutions-class-12-chemistry

Best wishes. Thank you.