Question # 1

Which of the following method is based on the solubility difference between the analyte and the unwanted components.

Choose an answer

Distillation

Complex formation

Electrodepostion

Precipitation

Which of the following salt is colourless.

Choose an answer

Zn salt

Co salt

Ni salt

Mn salt

Electron gas theory is able to explain

Choose an answer

Metallic lusture and optical properties

Malleability and ductility

High electrical and thermal conductivity

All of the above

The maximum number of electrons in first energy levels are.

Choose an answer

1

2

8

10

Which of the following to non -auditory effect of noise on human body.

Choose an answer

Changes in the Vascular tone

_{Increase in the blood pressure}

Wakening of the coloured vision

All above

Has maximum property of catenation.

Choose an answer

C

Si

Sn

Pb

Which of the following has hexagonal structure.

Choose an answer

Sodium chloride

Potassium choride

Diamond

Graphite

A colloidal system in which a liquid is dispersed in a solid is called a/an

Choose an answer

Emulsion

Sol

Gel

Precipitate

The criteria for aromatically is presence of

Choose an answer

Uneaturations

Cyclic structure

Presence of 4nx electrons

Presence of 4n + 2n electrons

What is the effect of manganese in cast iron.

Choose an answer

^{To affect the machinability ductility and shrinkage depending on form}

To reduce hardness by combining with sulfur below 0.5% and increase hardness above 0.55

To dioxide molten cast iron

Have no effect

Stereotsomers not related to each other as object and minor image are called.

Choose an answer

Enantiomers

Diastereolsomers

Conformations

Antipodes

The branch of chemistry which deals with the rate of reaction as well as mechanism is known as

Choose an answer

Wave mechanism

Classical thermodynamcis

Chemical kinetics

Phtochemistry

The common host compound for the formation of inclusion compound is.

Choose an answer

Urea

Thiourea

Cholic acid

All above

In an isochoric process

Choose an answer

Energy remains constant

Volume remains constant

Pressure remains constant

Temperature remains constant

Ozone is stratosphere is depleted by

Choose an answer

CF2Cl2

C7F16

C6H6Cl6

C6F6

What field of study encompasses the procurement and production of metals.

Choose an answer

Metallury

Geology

Metagraphy

Nanochemistry

Al2Cl6 is an example of

Choose an answer

Ionic bond

Covalent bond

Co ordinate bond

Metallic bond

_________ is used as stablizer.

Choose an answer

CaO

SiO2

NaCl

None of these

Which of the following polymers is chlorinated.

Choose an answer

Orlon

Neoprene

Dacron

None of these

Glass electrode cannot be used to measure the pH of pure.

Choose an answer

Acetic acid

Ethyl alcohol

Gelatin

All above

When a strong beam of light is passed through a colloidal solution, the light will

Choose an answer

Be reflected

Be scattered

Pass unchanged

Be dispersed

A combination of atomic orbitals produces a large number of closely special energy states brown as.

Choose an answer

Packet of energy

Band of energy

Botha a and b

None of the above

Which of the following elements of group 15 is a typical metal.

Choose an answer

P

As

Bi

Sb

When 0.01 moles of NaOH are added to a buffer solution, its pH changes from 4.745 to 4.832 WHAT IS ITS.

Choose an answer

0.115

0.900

0.015

0.215

Which of the following techniques is capable of seperating minute quantities of the substances in a relatively short times with high resolutions.

Choose an answer

Gel electrophoresis

Capillary electrophoresis

GC

HPLC

The reason why phenylamine is a much weaker base tahn ammonia when each is in aqueous solution to that.

Choose an answer

Teh ion pair of electron on two nitrogen atom of phenylamine is delocalised over the benzene ring.

The phenylamine molecule is too large to capture hydrogen ion easily

Phenylamine is much less soluble is water than is ammonia

The benzene ring has a tendency to increase the acidity of its substituents.

The juice is allowed to boil at lower temperatures to protect the sugar from

Choose an answer

Hardening

Solubility in water

Caramelization

Dwatering

The sugar present in RNA is

Choose an answer

D- ribose

D-Arabinose

D-Glucose

Deoxyribose

The central metal atom or ion and the ligands that are directly attached to it are enclosed in a square bracket called.

Choose an answer

Coordiantion complex

Coordination sphere

Coordination number

Coordination compounds

Group III A of the periodic table consist of elemetns.

Choose an answer

3

4

5

6

Neon is used in neon signs for advertising purpose because.

Choose an answer

Neon lights are visible from long distance

Neon light are visible though fog & mist

Both A and B

None of the above

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