B.Sc Chemistry

Yes,
You can apply for B.Tech Chemical Engineering through a GATE score. The best institutes for B.Tech Chemical Engineering are IITs, NITs, etc., State universities like BHU, JNU, etc., and Colleges like VIT, MIT, etc.

B.Sc. Chemistry takes 3 years,
M.Sc. Chemistry takes another 2 years,
Ph.D. Chemistry takes 3 to 5 years depending upon your research output and willingness. The general eligibility for B.Sc. Chemistry admission is passed in all subjects of 12th grade with Science subjects like PCM. Score as much as possible to get admission easily.

Go with your interest because each of them has its own importance in the industry.
If you have an idea of doing research, then go for the branch which contains your research interest topic.

Yes, it doesn't require deep math skills but you should be strong at basic math like Algebra Trigonometry Calculus (Limits, differentials and Integrals Matrices and Functions.

1. UK
2. USA
3. Singapore
4. Canada
5. European countries like Germany, France, Italy and Spain.

Generally for B.Sc. Chemistry admission requires a pass in all subjects of 12th grade and If you clear that, then you can get admission for BSc Chemistry in MCC.

It varies among institutes but mostly lies between 50k to 1L rupees per year.

For Chemistry (Foreign authors)
1. Concise Inorganic Chemistry by J. D. Lee
2. Organic Chemistry by Clayden or Organic Chemistry by Morrison and Boyd
3. Physical Chemistry by Atkins (Indian authors)
1. Inorganic Chemistry by Puri Sharma Kalia
2. Organic Chemistry by Bahl and Arun Bahl
3. Physical Chemistry by Puri Sharma Pathania.

Yes, admission for B.Sc. Chemistry requires pass in all subjects of 12th grade in school.

Biotechnology is about applications of Biology with some Physics and Chemistry to develop biological techniques in the real world. Chemistry is about applications of Physics and mathematics in Chemistry to develop both theoretical and experimental methods to improve/create the desired products. Zoology is about the study of diverse animals (all) of diverse environments. It requires knowledge from botany and basic Chemistry and Physics.