Q. Bisphenol a (BPA), a cause of concern, is a structural/key component in the manufacture of which of the following kinds of plastics?

[A] Low-density polyethylene

[B] Polycarbonate

[C] Polyethylene terephthalate

[D] Polyvinyl chloride

Answer: B

Why this Question) Health safety concerns, plastic ban in India. 

Ans) b 

Exp) Option b is correct. 

Bisphenol A (BPA) is a chemical used to make polycarbonate plastic. Polycarbonate plastic is used to make hard plastic items, such as baby bottles, re-useable water bottles, food containers, pitchers, tableware and other storage containers. 

BPA is also used to make epoxy resins. Epoxy resin linings coat the inside of metal products such as food cans, bottle tops and water supply pipes. The purpose of epoxy linings is to keep the can material from corroding or reacting with the food. 

Small amounts of BPA may remain in polycarbonate products and epoxy linings after curing, and be released into food and beverages. Canned foods and liquids stored or heated in polycarbonate containers and epoxy-lined cans appear to be the main source of exposure to BPA. 

Scientists and government agencies have differing opinions about whether the levels of BPA found in contents from polycarbonate containers or epoxy-lined cans may harm human health. Scientists have recently looked for associations between BPA exposure and health effects in the general population. Some studies have reported associations between elevated BPA exposure and health effects such as diabetes or heart disease, while other studies have not. 

Source) https://www.health.ny.gov/environmental/chemicals/bisphenol_a/ 

 Subject) Environment