Question # 1

The rate at which a substance reacts depends on its.

Choose an answer

Molecular mass

Active mass

Equivalent mass

Molar mass

The strongest acid is.

Choose an answer

HNO2

HNO3

H2N2O2

HNOS

The process of transfer of genetic message from DNA to m-RNA is known as

Choose an answer

Refplication

Translation

Transcription

Transference

The maximum number of electron is an atom with l = 2 and n = 3 is

Choose an answer

2

6

10

12

Which of the following statements is incorrect.

Choose an answer

The elements of group 18 are known as aerogens.

Group 2 elements are all metals

Metallic character increase on going down a group

All the elements belonging to a particular period have same valence shell configuration.

Sanger's reagent is

Choose an answer

Carbobenzyloxy chlride

Dimethyl amino sulphonyl chloride

I-Fluoro -2,4-dinitrobnzene

2,4- Dinitrophenyl hydrazine

According to CFT the metal ligand bond is considered to be ionic to presentage.

Choose an answer

100%

90%

50%

70%

The brown colour of the pulp obtained from chemical pulping is due to the present of

Choose an answer

Chlorine

Residual lignin

Sodium hydochlorite

All above

Example of linear geometry

Choose an answer

XeF2

F2 and HgCl2

CdI2 AND Ag Cl3

All of the above

Lewis concept explain the formation of

Choose an answer

Ionic bond

Covalent bond

Co-ordinate bond

Chemical bond

Steel is an alloy of iron and carbon with limits on the amount of carbon to less than _______ percent.

Choose an answer

2

3

1

4

Which of the following is not a chemical pollutant.

Choose an answer

Solid waste

Noiso

Insecticides

Liquid waste

The most electronegative element of the third period is.

Choose an answer

F

P

Br

Cl

The quantum yield of a Photo chemical reaction in

Choose an answer

Always less than unity

Always equal to unity

Always greater than unity

Can have any value > 0 depending on the reaction

Colour in transition metal compounds in attributed to

Choose an answer

Small sized metal ions

Absorption of light in UV region

Complete ns sub shell

incomplete (n-1) sub shell

The percentage of s-character in the hybrid orbitals sp, sp2 and sp3 follows the pattern.

Choose an answer

sp3 > sp2 > sp

sp > sp2 > sp3

sp = sp2 >sp3

sp = sp2 =sp3

All bond length in benzene are identical due to.

Choose an answer

Resonance effect

Inductomeric effect

Electromeric effect

Mesomeric effect

Ethylene belongs to.

Choose an answer

C_2v group

D_2h group

C₂ group

D_ah group

The steroid which plays an important role in carbohydrate metabolism is.

Choose an answer

Oestrone

Progestrrone.

Androsterone

Cortisone

Which of the following group reagent is used for III group of basic radical.

Choose an answer

Dilute HCl

H2S + HCl

NH4OH + NH4Cl

NH4OH + H2S

The substance added to the soil in very small amounts are called.

Choose an answer

Macronutrients

Micronutrients

Fertilizers

None of these

Any substance which has solidified from the liquid state with crystallization is known as

Choose an answer

Steel

Fibre

Glass

Asbestos

The number of phases of mixtures of four gases enclosed in a container is

Choose an answer

1

4

4-1

zero

Amino acids have

Choose an answer

Acidic group

Basic group

Both of these

None of these

Flourine differs from the other members of its own group due to.

Choose an answer

Its small size and low bond energy

Its higher electornegativity

None-availability of d-orbitals in its valence shell

All the above

The halide which is inert to water is

Choose an answer

PCl5

SiCl4

BCl3

SF3

Which of the following reagent cannot be used to detect the phenolic group.

Choose an answer

Neutral FeCl3

I2/NaOH

NaOH solution

Br2/H2O

The aluminium alloy used to make parts of aircrafts is.

Choose an answer

Magnalium

Aluminium bronze

Duralumin

All of the these

In which of the following techniques the solvated molecules are separated according to their size by their ability to penetrate a sieve like structure.

Choose an answer

Adsorption chromatography

Partition chromatography

Ion exchange chromatography

Gel permeation chromatography

a-pinene hydrochloride on warming rearrangements to form bornyl chloride

Choose an answer

Pinacol pinacolone

hofmann

Wagner Meerwein

Wolf

Electron affinities of halogens are in the order.

Choose an answer

F > Cl > Br > I

Cl > F > Br > I

Cl > Br > I > F

Cl > Br > F > I

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