Question # 1

The unit of sound pressure level is

Choose an answer

Pascal

Decibel

Newton

Ampere

Which of the following is not an ore of Cr.

Choose an answer

Chrome iron

Nicollite

Crocisite

Chrome ochre

Consider the coordination compound K2[Cu(CN)4] A coordinate covalent bond exists between

Choose an answer

K+ and CN-

Cu2+ and CN-

K_ and [Cu(CN)4]2+

C and N in Cn

Which substances is not used as an additive in paper industry.

Choose an answer

Glucose

Starch

Alum

None of these

Which of the following is not a component of a gas chromatography system.

Choose an answer

Carrier gas

Capillary column

Packed column

Cathode lamp

The bond length is measured by

Choose an answer

X-ray diffraction

Neutron diffraction

Microwave spectroscopy

All of above

Length of semiconductor nanorods are in the range of.

Choose an answer

1.50 nm

1-50 micro meter

100-500 nm

50-100 nm

Colloids can be purified by

Choose an answer

Peptization

Coagulation

The Breeding are method

Dialysis

Granulated sugar contains _____________% sucrose

Choose an answer

80

99.30

60

90

Which of the following disposal method is used or municipal wastes.

Choose an answer

Compaction

Composting

Recycling

Chemical processing

All above

Plane polarized light is affected by

Choose an answer

Identical molecules

All polymers

Chiral molecules

All biomolecules

In their ionic compounds halogens exhinit the oxidation states of.

Choose an answer

-1

-2

-3

-4

Which of the following radical is not a member of IV group.

Choose an answer

Mg²⁺

Co²⁺

Ni²⁺

Mn²⁺

To obtain cement dry powder, lime stones and shales or their slurry, is burnt in a rotary kiln at a temeperature between

Choose an answer

1100 ^o and 1200 ^oC

1200 ^o and 1300 ^oC

1400 ^o and 1500 ^oC

1900^o and 2000 ^oC

Which of following is used as make up chemical in Kraft process.

Choose an answer

Na2CO3

KCl

Na2SO4

NaOH

The rays emitted by the cathode in a gas discharge tube under low pressure and high voltage of electricity are called cathode rays. Which of the following properties are not related to cathode rays.

Choose an answer

These travel in a straight lines.

These are deflected by magnetic and electric field.

Minerals Fluoreace with a characteristic color when placed in a beam of cathode rays.

These are dependent of the material used for the electrode.

At high temperature nitrogen combines with calcium carbide to give

Choose an answer

Calcium cyanide

Calcium cyanamide

Calcium nitride

Calcium cabonate

Which of the following is soluble in water.

Choose an answer

AgF

AgCl

AgBr

Ag I

The SI unit of pressure is Pascal it is define da sa force per unit are of 1N/m2 one atmosphere of pressure is equal to.

Choose an answer

760 mm of Hg

1 bar

101 k Pa

760 torr

All are correct

The mole of photon is knonw as.

Choose an answer

Quantum

Einstein

Energy packet

None of the above

The particle would be stationary in a lattice only at.

Choose an answer

273 K

0 K

298 K

373 K

What typical penetrator is used in Brinell hardness test

Choose an answer

10 mm ball

1.6 mm diameter ball

20^o needle

None of these

Which of the following is a buffer solution.

Choose an answer

CH3COOH + NH4OH

CH3 COOH + HCl

CH3COOH + NaOH

CH3COOH + CH3COONa

In an adiabatic system, if work in done, the temperature must.

Choose an answer

Increase

Decrease

Remain the same

Increase than decrease

The basic strength of hydrides of group 15 elements very in the following order.

Choose an answer

NH3 > PH3 > AsH3 > SbH3 >BiH3

PH3 > NH3 > AsH3> SbH3 > BiH3

BiH3> NH3 >PH3 > AsH3 > SbH3

NH3 > PH3 > SbH3 > AsH3 > BiH3

It is known that AgCl is insoluble in HNO3 but dissolves readily in NH4OH solution .Which of the following statement is not correct.

Choose an answer

Ag ion reacts to form complex with NH4OH solution

The concentration of Ag ion decreases

Ionic product is less than the solubility product

Ionic product is greater than solubility product

An emulsifier is an agents which

Choose an answer

Stabilizes an emulsion

Homgeneises and emulsion

Causes coagulation of an emulsion

Helps in the formation of an emulsion

The bromine produced on commercial scale may contain impurities of.

Choose an answer

Water

Chloride

iodine

All above

Zinc oxide is.

Choose an answer

A basic oxide

An amphoteric oxide

An acidic oxide

A neutral oxide

Which of the following does not apply to metallic bond.

Choose an answer

Overlapping valence orbitals

Mobile valency electron

Delocalized electrons

Highly directed bonds

Most effective pesticide is

Choose an answer

Carbonates

Organophosphates

Organ chlorines

All of these

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