Question # 1

Pick out the incorrect statement regarding ozone.

Choose an answer

O3 is an unstbale dark blue diamagnetic gas

The central oxygen in O3 is sp3 hybridized

It cause the tailing of mercury

It does not react with KOH

__________ is used for fruits, vegetables and tobacco

Choose an answer

Potassium Chloride

Potassium Sulphate

Potassium nitraite

All above

Commercial detergents contain mainly ___________

Choose an answer

RCOON

RONa

RSNa

All above

Ionic bond are also forces called as.

Choose an answer

Polar bond

Electrovalent bond

None polar bond

Both A and B

All the halogen form oxyacide, except

Choose an answer

Florine

Chlorine

Bromine

Iodine

The volume of given mass of gas at constant pressure is directly proportional to the absolute temperature.This is a statement of.

Choose an answer

Charles's law

Boyle's law

Avogadro's law

Dalton's law

Which of the following metal ion cannot be catimated by gravimetric analysis.

Choose an answer

K+

Ca²⁺

Al3+

Zn2+

Alnico is an alloy containing how many percent nickel.

Choose an answer

10%

14%

18%

22%

Which of the following device is used to measure the surface tension.

Choose an answer

Polarimeter

Viscometer

Refractometer

Stalagnameter

The H2SO4 obtained by the contact process having purity

Choose an answer

70%

74%

78%

82%

Select an acidic amino acid

Choose an answer

Lysine

Cystine

Aspartic acid

Aminoacetic acid

Iodine is a grey black solid and its vapours are in color

Choose an answer

Grey

Black

Yellow

Violet

The property associated in thermometric tittration is

Choose an answer

Change in weight

Rate of change in weight

Heat evolved or absorbed

Change in temperature

In DTA , theriac effect may be exothermic of endothermic These are cause by

Choose an answer

Fusion

Crystal structure inversion

Destruction of crystal lattice

All of above

How many oxygen atoms lined up in a now would fit in a one nanometer speace.

Choose an answer

None an oxygen atoms is bigger than 1 nm

One

Seven

None of the above

The intensity of magnetization produced per unit strength of the applied magnetic field is called magnetic susceptibility., which of the following statements is not related with this phenomenon.

Choose an answer

Confirmation of structure of given compound

Complex storeochemistry

Diamagnetic nature of molecules

Paramagnetic nature of molecules.

Which is the second most abundant element occurring the earth crust.

Choose an answer

Iron

Cu

Cr

Ni

Which of the following is atmospheric pollutant.

Choose an answer

CO2

CO

O2

N2

In diborane (B2H6)

Choose an answer

The structure is similar to that of C2H6

All the atoms are in one plane

The born atoms are linked through hydrogen bridges

There is a direct boron boron bond

The reaction of toluene with chlorine in the presence of light gives.

Choose an answer

Benzoyl chloride

Benzyl chloride

m-chlorotoluene

Mixture of 0 and p -chlorotoluene

Lime water is an aqueous solution of.

Choose an answer

MgSO4

Ca (OH)2

CaCO3

CaSO4

The percentage of nitrogen in urea is.

Choose an answer

36%

46%

55%

65%

Which of the following process is used for the removal of particulates.

Choose an answer

Wet removal by precipitation

Sedimentation

Diffusion and impaction

All above

The electronic configuration of sodium (Z=11)

Choose an answer

1s2, 2s2, 2p4

1s2, 2s2, 2p6, 3s2 , 2p5

1s2, 2s2, 2p6, 3s1

1s2, 2s2, 2p6, 3s2

A high frequency sound has frequency

Choose an answer

100 Hz

200 HZ

300 Hz

500 Hz

The IUPAC name of C2(CN)3 is

Choose an answer

2,3-dicvano butanedinitrile

2,3 -dicyano -2- butenedinitrile

1,1,2,2-tetrcyanoethane

1,1,2,2, tetracyanocthenc

The suffix "ate" at the end of the name of the compiled signifies that it is.

Choose an answer

Cation

Anion

Neutral

None of above

The main constituents of ___________ are boron oxide and silica.

Choose an answer

Pyrex glass

Low silica glass

Soda lime glass

Super hard glass

The increasing order of energies of various sub shells is

Choose an answer

1s < 2s<3s<2p<3p<4s<3d

1s <2s<2p<3s<3p<4s<3d

1s>2s>2p>3s>3p>4s>3d

1s>2s>2p>3p>3d>4s

Which of the following anionic species is not separated by gravimetric analysis.

Choose an answer

Cl-

SO4

CH3COO-

PO4

In average composition of a good sample of cement the percentage of silica is.

Choose an answer

18.5%

20.5%

22.5%

24.5%

More Classes

Other Links

PPSC Chemistry Full Book Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer