Question # 1

Which of the following would decompose at lowest temperature.

Choose an answer

MgCO3

SrCO3

BaCO3

CaCO3

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

Choose an answer

K+

Ca²⁺

Al3+

Zn2+

The electrical resistance of stainless steels can be as much as______ time that of carbon steel.

Choose an answer

5

6

10-

15

Which of the following relation corresponds to Faraday law of electrolysis.

Choose an answer

m = ZI t

E = mc²

E = ho

None of the above

Hemimorphite is an example of.

Choose an answer

Orthosilicate

Pyrosilicate

Cyclic silicate

Meta silicate

The acetylene molecule contain a

Choose an answer

Single bond

Double bond

Triple bond

Co ordinate bond

The rate of a chemical reaction is proportional to the product of the active mean of the reactants, This is a statement of.

Choose an answer

Law of dynamic equilibrium

Le Chatlier's principle

Law of mass action

Solubility product principle

When the colourless liquid chlorobenzene is shaken with bromine water, the chlorobenzen becomes a yellow-orange colour. Which of the following is the best interpretation of this.

Choose an answer

An addition compound of chlorobenzene and bromine has been formed.

The chlorine atom has been replaced by a bromine atom

The bromine is mor esoluble in chlorobenzene than in water

A hydrogen atom has been replaced by a bromine atom

Ozone depletion in stratosphere will result in

Choose an answer

Forest fires

Increased incidence of skin cancer

Global warming

None of the above

Among the elements A, B,C and D having atomic numbers 7,8,9 AND 12 Respectively, the element with smallest size and highest IE is.

Choose an answer

A

B

C

D

Which of the following is a buffer solution.

Choose an answer

CH3COOH + NH4OH

CH3 COOH + HCl

CH3COOH + NaOH

CH3COOH + CH3COONa

Since the acid gives both acidic and normal salts so the acid is.

Choose an answer

di acid

di basic

double salt

Any of above

All steroids on heating wish solenium give

Choose an answer

phenanthrene

Cholesterol

Diels hydrocarbon

Isoprene

The most promising technique for solar production of electricity is.

Choose an answer

Dry cell

Battery

Solar cell

None of above

In a system , when the chemical potential of each component is the same for all phases. the equilibrium is said to be in

Choose an answer

Metastable equilibrium

Thermal equilibrium

Composition equilibrium

Mechanical equilibrium

Which of the following techniques involves the distribution of solute between two immiscible liquid phases.

Choose an answer

Chromatography

Electrophoresis

Solvent extractions

Solid phase extraction

Ca2+ is isolelectronic with.

Choose an answer

Mg2+

Kr

Ar

Na+

Which of tetra chloride is resistant to hydrolysis.

Choose an answer

CCl4

SiCl4

GeCl4

SnCl4

C - O bond lengths in carboxylate anion are equal due to.

Choose an answer

Resonance effect

Inductive effect

Resonance of identical contributing structures.

Hyperconjugation

NH3 has a not dipole moment while BF3 has zero dipole moment Thsi is because.

Choose an answer

NH3 is not a planar molecule while BF3 is a planar molecule.

NH3 is a planar molecule, while BF3 is a planner molecule.

Fluorine is more electronetative than nitrogen

Born is more electronegative than nitrogen

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

Choose an answer

Cl-

SO4

CH3COO-

PO4

Each of the following compound is an aromatic except.

Choose an answer

Benzene

Naphthalene

Cyclopentadienyl cation

Cyclopentadienyl anion

An aromatic compound has a molecules formula C7H8O. How many isomers are possible for this compound.

Choose an answer

3

4

5

6

Which of the following is the active ingredient in ordinary household bleach.

Choose an answer

HCl

Cl2

NaCl

NaCIO

The reciprocal of the coefficient of viscosity in called.

Choose an answer

Density

Specific gravity

Fluidity

Conductance

Example of linear geometry

Choose an answer

XeF2

F2 and HgCl2

CdI2 AND Ag Cl3

All of the above

Which of the following statements is not related to the decomposition phenomenon occurring in nature.

Choose an answer

Decomposition is due to autotrophic organisms

Decomposition involves bacteria and fungi

During decomposition organisms carry out specific reactions

Many species of decomposer are present in the biosphere

By applying an external force the ionic solid can be easily broken to powder form so the ionic solid are highly

Choose an answer

Hard

Brittle

Tough

Soft

Ingold's isoprence rule states that in terpenoids isopren units are joined.

Choose an answer

Head to tail

Head to head

Tail to tail

In a random order

The number of Glass products now manufactured is.

Choose an answer

25,000

75,000

50,000

All of these

Which of the following properties of a system does not change in a state of equilibrium.

Choose an answer

Density

Pressure

Colour

All above properties

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