MHT CET · Chemistry · Environmental Chemistry

Which among following statements is NOT true according to principles of green chemistry?

A In a chemical synthesis the waste product should be zero or minimum.
B Good atom economy means very few atoms of reactants are incorporated in the product.
C Only small amounts of unwanted by products are formed.
D Use of lindane is better than DDT.

Verified Solution

Answer & Solution

Correct Answer

(B) Good atom economy means very few atoms of reactants are incorporated in the product.

Step-by-step Solution

Detailed explanation

Good atom economy means most of the atoms of the reactants are incorporated in the desired products and only small amounts of unwanted byproducts are formed and hence lesser problems of waste disposal.

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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