Question # 1

A terpenoid which has as alcoholic group in the molecule is.

Choose an answer

Citral

Camphor

Menthol

Carvone

Which of the following haloacids is stronger acids.

Choose an answer

FCH2COOH

ClCH2COOH

Br CH2COOH

ICH2COOH

Which of the following a -amino acid is not capable of exhibiting optical isomerism.

Choose an answer

Glycine

Leucine

Arginine

Alanine

Amino acids have

Choose an answer

Acidic group

Basic group

Both of these

None of these

A mordants is substance which in

Choose an answer

Coloured

Leuco -base of a dye

Fixes dye on the fabric

All of these

Which of the following is not a pyrimidine base.

Choose an answer

Uracil

Thymine

Cytosine

Guanine

Among the following a good solvent for a Grignard reagent formation would be.

Choose an answer

t- butanol

dimethyl ether

difiuoro ethane

tetrahyudroform

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

Urea an enzyme used to estimate urea is a

Choose an answer

Hydrolytic enzyme

Oxidative enzyme

Reductive enzyme

Iso me rising enzyme

Presence of nitrogen in organic compound to tested as.

Choose an answer

Nitrogen gas

NH3

NO

Amide

Correct order of increasing ______ I effect of groups is

Choose an answer

----- NO2 >-----------CN > ------------COOH > -------------F

--------F > -------------COOH>----------CN>--------NO2

-----F> -------------CN>--------NO2 > COOH

-------CN > ------------COOH > -----------NO2 >----------F

The binding site on ribosome t-RNA and m-RNA is provided by

Choose an answer

Polysome

Ribosomal RNA

Codone

DNA

Soft drinks and baby feeding bottles are generally made up

Choose an answer

Polyeater

Polyurethens

Polyamide

Polyetyrene

The compound (CH3)3COH according to IUPAC is known as.

Choose an answer

Tert Butanol

2,2 -Dumethyl -Propanol

2- Methyl -2-propanol

Tert Alcohol

Which of the following is not a biodegradable polymer.

Choose an answer

Protein

PVC

Cellulose

Nucleic acid

The deficiency of which vitamin leads to beri brainteaser

Choose an answer

Thiamine

Riboflavin

Pyridoxine

Asorbic acid

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 factors effect the strengths of acids and bases.

Choose an answer

Inductive effect

Romance effect

Hydrogen effect

All above

Which of the following organic molecule is not aromatic.

Choose an answer

Benzene

Naphthalene

Anthracene

Cyclo-octatetraene

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.

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

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