AP EAMCET · Chemistry · Environmental Chemistry

Which of the following statements is not correct ?

A Catalytic converters present in automobiles prevent the release of nitrogen oxide to the atmosphere.
B Photochemical smog is a mixture of smoke, fog and $\mathrm{SO}_2$
C Chlorofluorocarbons damage ozone layer.
D Acid rain corrodes water pipes resulting in the leaching of heavy metals into the drinking water.

Verified Solution

Answer & Solution

Correct Answer

(B) Photochemical smog is a mixture of smoke, fog and $\mathrm{SO}_2$

Step-by-step Solution

Detailed explanation

NO SOLUTION

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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From AP EAMCET

Match the following?

	Column $- I$		Column $- II$
(a)	Ratio of change in time period of a simple pendulum with temperature to its original time period	(i)	$α Δ T$
(b)	Ratio of the value of a length to its scale reading	(ii)	$T$
(c)	Reciprocal of coefficient of volume expansion for an ideal gas of constant pressure	(iii)	$(1 + α Δ T)$
(d)	$\frac{F}{Y A} =$	(iv)	$\frac{1}{2} α Δ T$

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