Question # 1

Which of the following salt is colourless.

Choose an answer

Zn salt

Co salt

Ni salt

Mn salt

CIF is

Choose an answer

Chlorine monoflouride

Fluourine

Monochlorine fluoride

Monofluorine chloride

Form electron deficient compounds

Choose an answer

B

AI

Both B and AI

None of above

The force responsible for dissolution of ionic compounds in water are

Choose an answer

Hydrogen bonds

Ion dipole forces

Ionic bonds

Van Der Waal forces

Drained sewage has B.O.D.

Choose an answer

More than that of water

Less than that of water

Equal to that of water

None of the above

The percentage of nitrogen in ammonium sulphate is__________%

Choose an answer

27

21

23

19

BCl3 is a planar molecule because B atom is.

Choose an answer

sp2 hybridized

Sp3 hybridized

sp hybridzed

sp3 d hybridized

The coordination number of closely packed hexagonal is.

Choose an answer

4

6

8

12

Of the molecules, SF4 Xe F4 and CF4 which have square planar geometry.

Choose an answer

SF4 , Xe f4 and CF4

SF4 only

CF4 only

XeF4 only

Which of the following electrolytes will be most effective in the coagulation of arsenic sulphide sol.

Choose an answer

NaNO3

AI PO4

MgSO4

K4[Fe(CN)6]

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

Which of the following has the greatest metallic character.

Choose an answer

Na

Mg

Al

Si

Has maximum property of catenation.

Choose an answer

C

Si

Sn

Pb

In 1952 who popularized the use of CFT for inorganic chemist

Choose an answer

Bethe

Orge

Van Vleck

Werner

Eosin dye belongs to the group of dyes known as.

Choose an answer

Nitroso syes

Triphenylmethane dyes

Diphenylmethane dyes

Phthalein dyes

For quality control of Portland cement, the test essentially done is.

Choose an answer

Setting time

Soundness

Tensile strength

All

Two solids A and B have appreciable different solubility in water but their m.p. are very close. The mixture A and B can be separated by.

Choose an answer

Sublimation

Distillation

Fractional crystallization

Specific rotation

Which of the following reactions have small enthalpy change.

Choose an answer

NaOH with HCl

NaOH with CH3 COOH

HCl with NH4 OH

None of these

Who coined the word nanotechnology.

Choose an answer

Eric Drexler

Richard Feynamann

Sumio tijma

Richard smalley

The polarity of bonds can lead to polarity of molecules and affect

Choose an answer

Melting point

Boiling point

Solubility

All of above

Phosphorus has the oxidation state of +3 in

Choose an answer

Orthophosphoric acid

Hypophosphoric acid

Metaphosphoric acid

Orthophosphorus acid

According to the Langumir isotherm , when the pressure of the gas is very large, the adsorption.

Choose an answer

Is directly proportional to pressure

Is inversely proportional to pressure

Is directly proportional to the square of the pressure.

Is independent of pressure

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 a thermometric method.

Choose an answer

TGA

DTA

DTG

All

Which of the following basic process is involved in the separation of the complex mixture by chromatographic techique.

Choose an answer

Partition

Adsorptions

Ion exchange

All of the above processes

The important condition for the formation of chemical bond is that.

Choose an answer

Their electron clouds should not diffuse

Both atoms should have high electron affinites.

Both atoms should have same electronegativities

The process should be accompanied by the lowering in potential energy.

The number of significance figures in the number 80.7 is.

Choose an answer

1

2

3

4

At the some temperature 0.1 M solution of urea is isotonic with.

Choose an answer

0.1 M glucose solution

0.1 M NaCl solution

0.1 M urea solution

0.1 M BaCl2 solution

In a standard Weaton cell the cathode is

Choose an answer

Cadmium amalgam

Mercury

Platinum

Carbon

Classical smog occurs in place of.

Choose an answer

Excess concentration of SO2

Low temperature

High temperature

Excess concentration of ammonia

The element with maximum first ionization energy is.

Choose an answer

B

N

O

C

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