Question # 1

Nitrobenzen can be prepared from benzene by using a mixture of conc. HNO3 and conc. H2SO4 In the nitrating mixture. HNO3 acts as a.

Choose an answer

Base

Acid

Oxidizing agent

Catalyst

Enzymes are

Choose an answer

Complex non living compunds

Laving organisms

Complex protein molecules

Bacterial colonies

Which of the following organic molecule is not aromatic.

Choose an answer

Benzene

Naphthalene

Anthracene

Cyclo-octatetraene

Two solids A and B have appreciable different solubility in water but their m.p. are very close. The mixture A and B can be separated by.

Choose an answer

Sublimation

Distillation

Fractional crystallization

Specific rotation

Which of the following is the major process when neopentyl bromide is dehydrogenate with alcoholic potash.

Choose an answer

2- methyl -1- butene

2- methyl- 1- butene

2,3 -dimethyl butene

2- butene

Indigotin is a dye obtained from indigo plant which belongs to the group of.

Choose an answer

Substantive dyes

Mordant dyes

Vat dyes

Disperse dyes

Proteins have characteristics

Choose an answer

Melting poirn t

Iso electric point

Boiling point

All of these

The reagent which can be used to distinguish acetophenone from benzophenone is.

Choose an answer

2,4 -dinito phenyl hydrazine

Li AIH4

Benedict reagetn

I2 and Na2CO3

When FeSO4 is added in the sodium extract the compound formed is.

Choose an answer

Only Na4[Fe (CN)6]

Only Fe (OH)2

Only Na2So4

Mixture of all these

Which of the following molecules can oxhibit geometrical isomerism.

Choose an answer

CH3CH = CH2

CH3CH = CHCH3

(CH3)2 C = CH2

CH3CH = C(CH3)2

Hydrocarbon X (C6H12) on oxidation with hot alkaline (KMnO4) gives a mixture of prop ionic acid and dimethyl ketone. The structure of compound X is

Choose an answer

CH3CH = CHCH2CH2CH3

(CH3)2 C = CH CH2 CH3

CH3CH2CH = CHCH2CH3

(CH3)2 C = C (CH3)2

Albumin is classified as

Choose an answer

Simple protein

Conjugated protein

Lipoprotein

Derived protein

Phosphorus is detected by fusing the organic compound with -------followed by extraction with H2O

Choose an answer

HNO3

H2SO4

Sodium per oxide

Ozone

Which of the following statements is not correct. with respect to resonance.

Choose an answer

The position of atomic nuclei mus be same

The limiting structures must have same number of paired and unpaired electrons.

The energy of the various limiting structures must contribute equally

All above

Aromatic amine (X) was treated with alcoholic potash and another compound (Y) when foul smelling gas was formed with formula C2H3N (Y) was formed by reacting a compound (Z) with Cl2 in the presence of slaked lime . The compound (Z) is

Choose an answer

C6H5NC

CHCl3

CH3CH2OH

C6H5NH2

A terpenoid which as an alcoholic group in the molecule is

Choose an answer

Citral

Camphor

Menthol

Carvone

1-Chlorobutane on reaction with alcohols potash gives.

Choose an answer

1- butane

1-butanol

2- butane

2- butanol

The isoelectric point of a protein or amino acid to.

Choose an answer

pH at which it does not have any charge

pH at which it does not have not charge and does not migrate in electric field

pH at which the concentration of cation is greater than amino

pH at which the concentration of anion is greater than cation

Which of the following techniques is involved in purification of organic compound.

Choose an answer

Distillation

Sublimation

Solvent extraction

All above

When the concentration of reactant molecules is increased the rate of reaction increases. The best explanation is As the reactant concentration increases.

Choose an answer

The average kinetic energy of molecules increases.

The frequency of molecular collisions increases

The rate constant increase

The activation energy increases

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

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