MCQs4All - Chemistry MCQs for NTS, FPSC, CSS, IELTS, TOEFL

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Question. Cannizaros reaction takes place through the transfer of ____________________ from complex anion?

hydrogen ion
hydride ion
oxide ion
methoxide ion

Question. The spreading of fragrance or scent in air is due to_______________?

Diffusion
Effusion
Attraction with air
Low dsensity

Question. The molecules of CO2 in dry ice form__________________?

Ionic crystal
Covalent crystal
Molecular crystal
Any type of crystal

Question. The cooling of molten urea by air in the tower is called______________________?

prilling
evaporation
condensation
crystallization

Question. Ethylene epoxide treated with Grignards reagent followed by acid hydrolysis yield __________________?

primary alcohol
secondary alcohol
tertiary alcohol
dihydric alcohol

Question. Solubility product of AgCl is 2.0 x 10-10 mol2 dm-6. Maximum Concentration of Ag+1 ions in the solution is__________________?

2.0 x 10-10 mol dm-3
1.414 x 10-5 mol dm-3
1.0 x 10-10 mol dm-3
1.0 x 10-5 mol dm-3

Chemistry MCQs for NTS, FPSC, CSS, PPSC, PMS, UTS, FTS, OTS, Teaching, CT, PTC, SST, B.Ed, M.Ed of past papers

Question. Non-stoichiometric compounds of transition elements are called___________________?

hydrates
hydrides
binary compounds
interstitial compounds

Question. If internal energy of the system is increased ____________________?

Change in state of the system is increased
Temperature of the ystem may rise
Chemical reaction may take place
All

Question. The solution remaining after the formation of crystals is called ___________________?

Mother liquor
Dilute solution
Residue
both A & B

Question. The hydrolysis of Benzenetrizonide will yield three moles of____________________?

Glyoxime
Benzaldehyde
Glycol
Glyoxal

Question. The complete reduction carboxylic acid results in the formation of________________?

Alkyne
Alkene
Alkane
Alcohol

Question. Hydrogen effuses four times more rapidly than volume of an unknown gas molar mass of unknown gas should be_______________?

16 gmol-1
32 gmol-1
48 gmol-1
64 gmol-1

Question. In a group ionic radius ?

Increases
Decreases
No change
Variable trend

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