Question # 1

Glycine is characerized by

Choose an answer

Absence of an asymmeteric carbon

Absence of optical activity

The shortest amino acid

All of these

Essential alpha-amino acids are those which are necessary in the diet.

Which one is an essential alpha-amino acids

Choose an answer

Alanine

Aspartic acid

Glycine

Tryptophan

Which of the following alpha-Amino acids has basic R-group

Choose an answer

Proline

Glutamic acid

Histidine

Valine

The reaction kinetics concerned with the

Choose an answer

Rate of reaction

Direction of reaction

Factor effecting rate of reaction

both a &b

In Case of elements the polymorphism is called

Choose an answer

Isotopic form

Allotropy

Isomorphism

Crystalline forms

The number of unpaired electrons present in Fe ions is

Choose an answer

1

2

5

0

For N2: +3H2<--------> 2NH3, if Kc is 1 than value of Kp at 273K would be

Choose an answer

1/22.414

1/(22.414)2

22.414

11.207

Which of the following human activities are contaminating surface and ground waters?

Choose an answer

pesticides

septic ranks

petroleum and natural gas production

all of these

The protein which only yield amino acids and their derivatives

Choose an answer

Simple proteins

Complex proteins

Derived protein

All of these

In which of the following processes are small organic molecules made into macromolecules

Choose an answer

The cracking of petroleum fractions

The fractional distillation of crude oil

The polymerization of ethene

The hydrolysis of protein

Coenzymes are the species which increase the activity of enzymes. They are chemically

Choose an answer

Metal ions

non-metals

Organic acids

Organic bases

Sodium is manufacture by the electrolysis of fused sodium chloride and not from an aqueous solution of sodium chloride because

Choose an answer

Sodium chloride does not ionize in the water solution

Sodium chloride is not soluble in water

Sodium deposited at the cathode may react with water to form sodium hydroxide

Electricity does not pass through aqueous NaCl

All reactions occur in :

Choose an answer

A single step.

A series of steps

Two steps.

Both (a) and (b)

If a reactant or product of a reaction absorbs radiation, then physical method for determining the rate of reaction is

Choose an answer

Spectrometry

Refractometry

Conductivity measurement

Optical method

Source of organic compounds primarily is:

Choose an answer

Plants

Animals

Minerals

A & B

Poly hydroxyl compounds of aldehyde ketones are:

Choose an answer

Carbohydrates

Protiens

Fats

Lipids

Aniline reacts with which of these to form Schiff base?

Choose an answer

Acetic acid

Bezaldehyde

Acetone

NH₃

Noble gases have the electronic configuration with their valance shell ns²np⁶except one

Choose an answer

He

Ne

Kr

Xe

Among O, C, F, Cl, Br, the correct order of increasing radii is

Choose an answer

F O C Cl Br

F C O Cl Br

F Cl Br O C

C O F Cl Br

n-butane and iso butane are an example of

Choose an answer

Chain isomerism

Positional isomerism

Meta merism

Functional group isomerism

The human body can synthesize ______ amino acids

Choose an answer

1

10

20

19

If the rate of decay of radioactive isotope decreases from 200 cpm to 25 cpm after 24 hours, what is its half life :

Choose an answer

8 hours

6 hours

4 hours

3 hours

More Classes

Other Links

Chemistry General Science Test Medium Mode 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