Question # 1

Sugar and common salt in a mixture can be separated through then process of.

Choose an answer

Sublimation

Distillation

Ion exchange

Crystallization from solution in ethanol

The bond angle between hybrid orbitals in methane is

Choose an answer

115.5^o

109.5^o

105,7^o

120^o

Select a basic amino acid.

Choose an answer

Glycine

Cystine

Alanine

Lysine

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.

The terpenoid responsible fo the smell

Choose an answer

Camphor

Genenial

Citral

Carvone

Enfleurage process is used to extract the essential oils from

Choose an answer

Back of plant

Seeds of plant

Leaves of plant

Flowers of plant

In which polymerization branching of chain cannot be possible.

Choose an answer

Free radical

Cationic

Anionic

Anionic and Zieglar Natta

The molar mass of an organic acids is determined by

Choose an answer

Depression of freezing point

Elevation of boiling point

Volumetric method

Victor Myer's method

Vet days are generally applied to the fabric in the form of.

Choose an answer

Mordants

Leuco base

Oxidised base

Dispersed dyes.

Alkaline hydrolysis of chloroform produces.

Choose an answer

HCCO

HCOO - + CO

H3COH

CHCL2 OH

Dry distillation of amino acids with barium hydroxide yields.

Choose an answer

Acids

Amines

Alcohols

Hydroxy acids

Which configuration has lowest potential energy.

Choose an answer

Eclipsed

Staggered

Skew

All have same energy

The most stable carbonium ion is

Choose an answer

See butyl

n-butyl

Tert butyl

None of the above

Which of the following is a planar molecule.

Choose an answer

Acetone

Formic acid

Acetic acid

All above

Toluene is o/p -orienting with respect to an electrophilic substitution reaction due to.

Choose an answer

+1 effect of the methyl group.

+1 as wellas +H effect of the methyl group

Hyper conjugatin between the methyl group and phenyl ring.

+ R effect of the methyl group

Which of the following statement is not correct n respect of Arrhenius concept.

Choose an answer

The concept is applicable only for aqueous systems.

Neutralization takes place in aqueous mediam only

TH+ ion cannot remain as such in water

This concept is applicable for non aqueous system only.

Which of the following test is not shown by proteins.

Choose an answer

Xanthoproten test

Ninhydrin test

Hopkin cole test

Muliken Barker test

Gutta percha is

Choose an answer

Cis poly imprene

Trans -polyisoprene

Polyethylene

Polyisobutylene

It is possible to distinguish between optical isomers.

Choose an answer

Using chemical tests

By mass spectrometry

By IR spectroscopy

By polarimetry

Sterols are steroids having the functional gruup.

Choose an answer

Ketonic

Al;coholic

Phenolic

Aldehydic

Enzymatic action is heat at a fixed

Choose an answer

Temparature

pH

Both of these

None of these

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