Question # 1

Select the major product obtained from the addition of HBr to I -Methyl cyclohexene

Choose an answer

1-bromo -2- methyl cyclohexane

6- bromo-i- methyl cyclohex -i- ene

3- bromo -1- methyl cyclohex - 1- ene

I-bromo -I- methyl cyclohexane

The alternate feasible fuel for existence of mankind to

Choose an answer

Uranium

Wood

Bontonite

Cloth residues

The noble gas which was discovered first in the sun and then on the earth is.

Choose an answer

Helium

Neon

Argon

Xenon

When metal orbital are rotated in octahedral field the following representation obtained.

Choose an answer

t2 g + lg

a1 g

t 1 u

All above

Which among the following is least soluble in water.

Choose an answer

NaF

LiF

KF

CsF

Which of the following metals is the most abundant in the earth's crust.

Choose an answer

Mg

Ca

K

Na

The noble gases which does not I do not form any clathrates is.

Choose an answer

He

Ne

Argpm

Both He and Ne

Which of the following statements is not correct.

Choose an answer

The conductance of one cm3 of a material is called specific conductance

Specific conductance increase while equivalent conductance decreases on progressive dilution

The limiting equivalent conductance of weak electrolytes cannot be determined by extrapolation of the plot of A against concentration

The conductivity of metals is due to the movement of elctrons.

Which of the following steps is not involved in chemical analysis.

Choose an answer

Separation of sample in pure form

Separation of the sample in the mixture form

Preparation of sample for the analyisis

Validity of experimental results

Which of the following statement is not true with respect to the role of matter undergoing decomposition.

Choose an answer

Decomposed matter increase soil fertility

They provide a texture which is favorable for plant growth

Organic compounds for complexes with mineral nutrients which enhance uptake by plants.

In high concentration the decomposition product may increase the photosynthesis

Temporary hardness of water is due to.

Choose an answer

Bicarbonates of K

Bicarbonates of Na

Carbonates of Ca

Bicarbonates of Ca

The word 'ceramic' meant for.

Choose an answer

Soft material

Hard material

Burnt material

Dry material

In sodium chloride type lattice, the ratio of coordination number of cation to anion is.

Choose an answer

6:6

7:7

4:8

4:4

Which of the following is most soluble in water.

Choose an answer

BaSO4

Sr SO4

CaSO4

MgSO4

The IUPAC suffix used for ______ NC group is

Choose an answer

Cyanide

Isocyanides

Carbylamines

Nitrite

The Langmuir theory of unimolecular adsorption is generally valid at.

Choose an answer

Low pressures and low temperature

Low pressures and high temperature

High pressures and low temperature

High pressure and high temperature

The spectral line obtained when an electron jumps from n = 6 to n= 3 belongs to.

Choose an answer

Balmer series

Layman series

Paschen series

Bracket series

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

Choose an answer

K+

Ca²⁺

Al3+

Zn2+

Which of the following is not chemical characteristics of water.

Choose an answer

pH

COD

BOD

Colour

Which of the following dye is used an antiseptic .

Choose an answer

Methyl orange

Mercurochrome

Alizarin

Bismarck brown

Oxidative enzymes are responsible for

Choose an answer

Biological processes

Biological oxidation

Biological hydrolysis

Biological isomerisation

Coulometry is based on the measurement of

Choose an answer

Electrical current

Electrical potential

Electrical conductance

Dielectric constant

Pick out the ideal conditions needed for the manufacture of H2SO4 by contact process.

Choose an answer

Low temperature high pressure and high concentration of reactants

Low temperature , low concentration of reactants and low pressure

High temperature high pressure and high concentration of reactants

Low temperature, low pressure and high concentration of reactants.

The compounds whose formation require a host compound and a guest compound are called.

Choose an answer

Exclusion compounds

Inclusion compounds

Crystal compounds

None of the above

Which of the following reactions is employed to produce ozone in the laboratory.

Choose an answer

Exposure of air to UV light

Reaction of F2 with H2O at low temperature

Reaction SO2 with H2O2

Passage of silent electric discharge through oxygen

The oxidation number Xe in XeOF2 is

Choose an answer

0

+2

+4

+3

Which sequence of steps is correct in paper making machine

Choose an answer

Pressing Dyring, Flow spreader Calender stock

Flow spreader, Pressing, Prying Calender sock

Drying ,Pressing , Flow spreader, Calender stock

None of above

Transition metal possess

Choose an answer

Definite color

Catalytic power

Both A and B

None of above

Radon is obtained only in the radioactive decay of

Choose an answer

Radium

Thorium

Actinium

Any of above

Mangalium is an alloy of.

Choose an answer

Al + Mg

Mg + Ai + Mn

Mg + Ai + Cu

Mg + Ai + Cu + Mn

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.

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