Question # 1

Which of the following is not a property of crystalline solid

Choose an answer

geometric shape

cleavage plane

anisotropy

isomerism

Example of basic essential amino acids

Choose an answer

Arginine

Histidine

Lysine

All of the above

The normal amount of overhead ozone is about

Choose an answer

250 Du

300 DU

350 DU

400 DU

When calcium formate and calcium acetate are dry heated they form

Choose an answer

НCOOH

C2H5OH

CH3CHO

HCHO

The main pollutant of leather in the waste water is due to the salt of:

Choose an answer

Lead

Chromium (VI)

Copper

Chromium (III)

There are 20 amino acids found in protein which is not the property of these amino acids

Choose an answer

They are all alpha-amino acids

They are all optically active

They have high decomposition point

They are water soluble

Which of these has at least one d electron

Choose an answer

Sc+3

Mn+7

Ti+4

Cr+3

The smog having high contents of SO₂is

Choose an answer

Neutral smog

Reducing smog

Oxidizing smog

Artificial smog

Eleven elements made part of earth mass:

Choose an answer

97.5%

98.5%

99.5%

100%

Sea gets polluted bu accidental oil spills and

Choose an answer

Atmospheric pressure

Nitrogen gas

Cargo oil tankers

Aero plane

Which of the following processes has always. ∆H=-ve

Choose an answer

Formation of compound

Dilution of a solution

Dissolution of ionic compound

Combustion

Ground and surface waters are contaminated and become polluted due to the human activity. Which human activity will bot cause water pollution

Choose an answer

Live stock waste

Agricultural pesticides

Oil breaks and spills

All of the above

Organic synthetic or man made polymers are plastics, rubber and fibre. Which is not a synthetic polymer

Choose an answer

Silk

Polyester

Polyvinyl chloride

Nylon

Which one of these is weakest?

Choose an answer

Ionest bond

Covalent bond

Metallic bond

Van der Waal's forces

Choose an answer

Forward reaction is favoured

Backward reaction is favoured

No effect

None of the above

An electrophile may be

Choose an answer

Positive

Negative

Neutral

Both c and a

Reductive ozonolysis of benzene produces

Choose an answer

Acetone

Maleic anhydride

Phthalic acid

Glyoxal

Which of the following sulphates has the highest solubility in water

Choose an answer

BaSO₄

CaSO₄

MgSO₄

BeSO₄

Aldehydes give reactions :

Choose an answer

Oxidation and reduction

Base-catalysed nucleophilic

Acid catalysed nucleophilic

All of these

Unpleasant smell of carbylamine is obtained when chloroform and alcoholic KOH are heated with

Choose an answer

Any aromatic amine

Any primary amine

Any amine

Any aliphatic amine

Some of the elements of a period show similar behavior with the elements of next group in next period this is called

Choose an answer

Vertical relationship

Oblique relationship

Diagonal relationship

None

Gammexane is

Choose an answer

Chlorobenzene

Benzyl chloride

Brommobenzene

Benzene hexachloride

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