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Chemistry

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1511 MCQs

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oost your exam preparation with our Chemistry MCQs designed for PPSC, FPSC, NTS, OTS, PTS, AJKPSC, BPSC, KPPSC, PMS, CSS, and all competitive exams.
Our content covers Basic Chemistry, Atomic Structure, Periodic Table, Chemical Reactions, Acids & Bases, Organic Chemistry, and everyday chemical concepts.

A Mordent dye

B Vat dye

C Acid dye

D Direct dye

A Alum

B Chlorine

C Lime

D permangnate

A Hg, Pb

B Zn, Mn

C As, CD

D Cd , Pb

A Free radicals

B Cosmic rays

C Nitrogen oxides

D UV -rays

A only salt

B Organic matter

C Salt & Organic matter

D Suspended impurity

A DDT

B mercury salt

C Domestic waste

D Aluminum foil

A Water pollution

B Sound pollution

C Soil pollution

D Air pollution

A Source

B Receptor

C Sink

D All of them

A COD

B DO

C PH

D Salinity

A Separating factors

B decreasing factors

C Colouring factors

D retardation factors

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The most useful dye for those fabric which can form hydrogen bonds is:_____________?

The phosphate present in sewage water which cause eutrophication Can be removed by adding:

which of the following pair is not distinguished by passing H2S?

Ozone is formed in the upper layer of the atmosphere from oxygen by action of:____________?

Surface water contains:_____________?

Biodegradable pollutant is:_____________?

Cyclone collector is used for minimizing:____________-?

The medium which interact with long lived pollutant is:_____________?

Which one of the following gives the measure of Organic pollution in water?

The distribution coefficient is related to:______________?