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Shape and Geometry Using VSEPR

Read the foll...

Question

Read the following statements carefully

(i) An electrostatic precipitator removes particulate matter by imposing negative charge on them.

(ii) Catalytic converters convert unburnt hydrocarbons into $C O_{2}$ & water.

(iii) Peroxyacyl nitrate (PAN) is a secondary pollutant.

(iv) DDT is a non – biodegradable pollutant.

Which of the above statements are incorrect?

A

i & ii

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B

iii & iv

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C

i & iii

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D

none of these

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Solution

The correct option is D
none of these

All are correct

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Similar questions

Q. Read the following statements carefully.
(i) An electrostatic precipitator removes particulate matter by imposing negative charge on them.
(ii) Catalytic converters convert unburnt hydrocarbons into

{C O}_{2}

and water.
(iii) Peroxyacyl nitrates (PAN) is a secondary pollutant.
(iv) DDT is a non-biodegradable pollutant.
Which of the above statements are incorrect ?

Q. Read the following statements carefully.
(i) An electrostatic precipitator removes particulate matter by imposing negative charge on them.
(ii) Catalytic converters convert unburnt hydrocarbons into carbon dioxide and water.
(iii) Peroxyacyl nitrates (PAN) is a secondary air pollutant.
(iv) DDT is a non-biodegradable pollutant.
Which of the above statements are incorrect?

Q. Read the following statements regarding the PAN (peroxyacyl nitrates) and select the correct ones.
(i) It is a secondary pollutant present in photochemical smog.
(ii) It is produced by photochemical reactions between hydrocarbons and nitrogen oxides in the presence of sunlight of UV radiations.
(iii) It is thermally unstable and decomposes into peroxyethanoyl radicals and nitrogen dioxide gas.
(iv) It is a lachrymatory substance, causing irritation of eyes.

Q. Match the column I with column II and mark the appropriate choice.

	Column I		Column II
(A)	Biodegradable pollutants	(i)	DDT
(B)	Non-biodegradable pollutants	(ii)	$S O_{2}$
(C)	Primary pollutants	(iii)	PAN
(D)	Secondary pollutants	(iv)	Sewage

Q. Catalytic converters are fitted into automobiles to reduce emission of harmful gases. Catalytic converters change unburnt hydrocarbons into ________________.

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