Question # 1

Amino acids have

Choose an answer

Acidic group

Basic group

Both of these

None of these

Which of the following statements are correct for Linear polymers.

Choose an answer

Linear polymers may be condensation as well as addition polymers

Structure is well packed in nature

Linear polymers have higher density higher melting point and higher tensile strength

All are correct

An impure sample of camphor contaminated with sand, can be purified by

Choose an answer

Distillation

Sublimation

Steam distillation

None of the above

Which of the following haloacids is stronger acids.

Choose an answer

FCH2COOH

ClCH2COOH

Br CH2COOH

ICH2COOH

Which of the following is not a pyrimidine base.

Choose an answer

Uracil

Thymine

Cytosine

Guanine

Which of the following polymers is chlorinated.

Choose an answer

Orlon

Neoprene

Dacron

None of these

Which of the following property has a higher value for trans isomer as compared to cis isomer.

Choose an answer

Density

Dipole moment

Melting point

Boiling point

Which statement is false.

Choose an answer

If a reaction is thermodynamically spontaneous it may occur rapidly

If a reaction is thermodynamically spontaneous it may occur slowly.

Activation energy is a kinetic quantity rather than a thermodynamic quantity.

If a reaction is thermodynamics spontaneous, it must have a low activation energy.

Which of the following is branch chain polymer.

Choose an answer

Glycogen

Terylene

PVC

Orlen

All steroids on heating wish solenium give

Choose an answer

phenanthrene

Cholesterol

Diels hydrocarbon

Isoprene

Apoenzyme is

Choose an answer

Hydrolytic enzyme

Oxidative enzyme

Coenzyme

Protein part of enzyme after removal of coenzyme

Which of the following statement in not correct with respect to inductive effect.

Choose an answer

Bond length decrease with increase in inductive effect.

Inductive effect generates polar character in bonds

Variation in strength of aliphatic acids can be explained

It alone cna explain the basically of triphenylamine

The dye which is a constituent of Skiffs reagent used for detection formaldehyde group is.

Choose an answer

Gentain violet

Megneta

Phenolphthalein

Rosolic acid

Recrystallization is the most common technique of purification of solid organic substances Which of the following statements is not related with characteristics of a suitable solvent.

Choose an answer

It dissolves the substance on heating

It readily allows it to separate out in the form of crystal on cooling

It does not react chemically with substance

It does dissolve the impurities.

Which is not true about polymers.

Choose an answer

Polymers do not carry any charge

Polymers have high viscosity

Polymers scatter light

Polymers have low molecular weight

Which type of polymer the Nylon -06 is

Choose an answer

Polyamide

Polyester

Addition

Homopolymer

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

In propagation step the reaction intermediate of radical polymerization is

Choose an answer

Carbocation

Carbonion

Free radical

Carbene

The deficiency of which vitamin leads to beri brainteaser

Choose an answer

Thiamine

Riboflavin

Pyridoxine

Asorbic acid

An example of acyclic polytropenoid is

Choose an answer

Myrcone

Buna -S

Synthetic rubber

Natural rubber

The number of hydrogen bonds boding A _____ T pair is

Choose an answer

1

2

3

4

More Classes

Other Links

PPSC Chemistry Part II Organic Chemistry Online 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