Question # 1

Which of the following methods gives the number average molecular weight of a polymer.

Choose an answer

Light scattering method

Osmotic method

Sedimentation equilibrium method

Viscosity method

Which of the following substance is a volatile metals.

Choose an answer

Lead

Zinc

Mercury

Sodium

Nanoscience can be studied with the help of

Choose an answer

Quantum mechanics

Newtonain mechanics

Macro dynamics

Grophysics

Boric Acid is used

Choose an answer

In manufacture of pottery glaze

In medicine as an antiseptic

In tanning industry

All above

An induction of dipole or polarity in non polar bond, and consequent electron shifting along a chain of atoms is known as.

Choose an answer

Inductive effect

Resonance effect

Hyper conjugation

None of the above

Which of the following group will have hyper conjugation effect when attached to benzene.

Choose an answer

------ CH3

----C6H5

------C(CH3)3

---------CH(CH3)2

Disease caused by eating fish found in water contaminated with industrial waste having mercury is.

Choose an answer

Minamata disease

Bright's disease

Hashimoto's disease

Osteoaclerosis

The concept is also known as electron pair donor acceptor system.

Choose an answer

Bronsted Lowery

Lewis

Lux -Flood

Usanovich

Primary structure of protein refers to

Choose an answer

Amino acid sequence

Arrangement of peptide chains

Orientation of amino acids

Whether is has a or b helix in space structure.

The relative populations of gourd state and excited state populations at a given flame temperature can be estimated using.

Choose an answer

Boltzmann distribution law

Maxwell law

Lambertie law

Beer's law

Which of the following statements is false about enantiomers.

Choose an answer

Rotate plane of polarized light

Are superimposable mirror images

Nbonsuperimposable mirror images

All of the above

Which of the following statement is not correct regarding the stern theory of charge on colloidal particles.

Choose an answer

The colloidal particle has a charge distribution at its surface.

In the immediate vicinity of the colloidal particles there is an excess of counter ions

The greater the concentration and charge of ions in the diffused electrical double layer. the larger is the thickness of the layer

At large distance from the colloidal particles, the concentration of co-ions and counter ions are almost equal

Particulate from soil and mineral primarily contains

Choose an answer

Sodium compounds

Calcium compounds

Silicon compounds

Calcium, aluminum and silicon compounds

The physical methods of nano roads syntheses involves.

Choose an answer

Top down approach

Bottom up approach

Left right approach

Right left approach

Which of the following statements is not related with joule Thomson effect.

Choose an answer

Joule Thomson is 0 isenthalpic in nature

H2 and He show heating effect

All gases show change in temperature

The change in temperature depends on initial temperature and nature of the gas.

Joule Thomson coefficient is defined as meo= (op/oT)H

Which of of the following statement is not correct in respect of

Arrhenius concept.

Choose an answer

This concept is applicable only for aqueous systems.

Neutralization takes place in aqueous medium only

H+ ion concept remain as such in water

This concept is applicable for non aqueous system only.

Which of the following is most acidic.

Choose an answer

Phenol

p-nitrophenol

o-Nitrophenol

m-Nitrophenol

The formula of Bauxite is.

Choose an answer

Al2O3

Al2 O3. 2H2O

AL2O3, H2O

Na3AIF6

What is the activation energy of a reaction whose rate constant increases by a factor of 100 upon increasing the temperature from 300 K to 360 K.

Choose an answer

27

35

42

69

SO2 is generated from which of the following industry.

Choose an answer

Drying and packing

Paper

Pulp

paper and pulp

Usually the rate of the reactions is expressed as.

Choose an answer

mol dm-1

mol dm-3 s-1

mol dm-2 s-1

mol 2 dm-3 s-1

Give violet colour to flame

Choose an answer

Gallium

indium

Thallium

Aluminium

The structure of SO2 is

Choose an answer

Linear

Angular

V-shaped

Planner

J.J. Thomson established certain properties about cathode rays. Which of the following is not related to cathode rays.

Choose an answer

Cathode rays from a gas discharge tube consists of negatively charged particles

Cathode rays are called electrons.

The e/m ratio of cathode rays depends on the gas inside

Cathode rays are affected by electric and magnetic fields.

According to recent view which is the correct representation of hydrated proton in aqueous solutions.

Choose an answer

H+

H9O3+

H9O4+

H2O+

Which of the following gas protects us form harmful effect of uv radiation.

Choose an answer

SO2

NO2

CO

O3

Which of the following steps are involved in the extraction of copper.

Choose an answer

Roasting

Smelting

Refining

All

Carbon in wrought iron is present as

Choose an answer

Silicon carbide

Iron carbide or comentite

Graphite

Partly as iron carbide and partly as graphite

An stereospecific enzyme in one which catalyses

Choose an answer

Formation of one stercolsomer

Reaction of one stereoisomer only

Both of these

None of these

The increase in boiling points of noble gases from He to Xe is due to the

Choose an answer

Decreases in ionization energy

Increases in polarizability

Increase in electron affinity

Increase in atomic volume

An example of acyclic monotterpenoid is

Choose an answer

a -pinene

Camphor

Geranial

Citral

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