Question # 1

Which of the following compounds has fishing ordure

Choose an answer

ammonia

Organic sulphides

Amines

H2S

Fluorine is.

Choose an answer

Powerful oxidizing agent

Most reactive element

Used as refrigerants

All of above

In compressive strength of a nanotube ______ its tensile strength.

Choose an answer

I less than

Is greater than

Is equal to

Less than or equal to.

Which of the following is not chemical characteristics of water.

Choose an answer

pH

COD

BOD

Colour

Which of the following is not a characteristic of dye.

Choose an answer

It must have suitable colour

It must be able to fix to fibre

It must be fast to wash and lights

It must be highly soluble in water

Which of the following substance is released into environment in the nuclear power plants.

Choose an answer

Iodine -131

Argon - 41

Sr-90

Cs- 137

All above

______ is used for Annealing

Choose an answer

Klin

Batch

Converter

Oven

Which of the following is the third most abundant element in the nature.

Choose an answer

Oxygen

Sulphur

Aluminum

Hydrogen

Which of the following statement is not correct with respect to limitations of Hammett equation.

Choose an answer

It is only applicable to aromatic systems

Only applicable to aliphatic systems

It is not valid for m-substituent

According to the VSEPR theory, the shape of the SO3 molecule is.

Choose an answer

Pyramidal

Tetrahedral

Trigonal planar

Distorted totrahedron

The fluoride tooth paste contains

Choose an answer

SnF2 and Sn2P2O7

NaF

CaF2

None of these

RNA is involved int eh synthesis of

Choose an answer

Protein

Nucleic acid

Carbohydrates

Fats

Hot isostatic pressing is not a viable option if the chief criterion is

Choose an answer

Strength without gram growth

Lost cost

Zero porosity

Make it hard

Which of the following gas is lightest.

Choose an answer

Dihydrogen

Helium

Dinitrogen

Dioxygen

Which of the following bonds will be non polar.

Choose an answer

N - H

O - H

C - H

C l - Cl

The first step of formation of sugar is

Choose an answer

Extraction

Washing

Cutting

Clarifying

Which of the following is the cause of Brownian movement of colloidal particles.

Choose an answer

Convection currents int he fluid

Bombardment by the molecules of the dispersion medium

Setting of dispersed phase under gravity.

Thermal gradient in the medium

The element having electronic configuration 1s2, 2s2, 3s2, 3p3 is.

Choose an answer

Trivalent only

Tetravalent only

Trivalent and pentavalent

Pentavalent only

Equivalent conductance is expressed in the units.

Choose an answer

S cm-1 eq -1

S cm eq-1

S cm2 eq-1

S cm2 eq

Which of the following cast iron is heat treated for ductility.

Choose an answer

Gray iron

Malleable iron

White iron

None of these

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

Homolytic fission of convalent bond results in the formation of.

Choose an answer

Free redicals

Carbocations

Carbonions

Both B and C

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

During the preparation of soap the liquid separated by distillation is

Choose an answer

Sodium hydroxide

Oil

Fats

Glycerol

The formula of hexa borane is.

Choose an answer

B4H10

B6 H10

B5 H9

B8 H12

Nitrobenzen can be prepared from benzene by using a mixture of conc. HNO3 and conc. H2SO4 In the nitrating mixture. HNO3 acts as a.

Choose an answer

Base

Acid

Oxidizing agent

Catalyst

An explosive

Choose an answer

Nitroglycerine

Trinitrotoluene

Fluorine perchlorate

All above

Which show maximum number of oxidation states in 3d series.

Choose an answer

Mn

Ni

Co

Zn

pH of pure water at 25 ^oC. kw = 1 x 10^-4

Choose an answer

0

7

14

None of above

The chrome molybdenum steels contain how many percent of molybdenum

Choose an answer

0.10

0.20

0.30

0.40

Which of the following statements is wrong.

Choose an answer

Covenant compounds are generally soluble is polar solvents.

Covalent compounds have low melting and boiling points

Lower than that of separate H atoms

Sometimes lower and sometimes higher than that of separate H

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