Question # 1

The optimum pH value for the enzyme ''Pepsin'' is:

Choose an answer

2

8

10

1.4

For a chemical reaction which can never be a fractional no

Choose an answer

order

molecularity

half-life

rate constant

Exhaust fumes of cars contain which poisonous gas

Choose an answer

CH₄

C₂H₆

CO

All of these

A polymeric substance that is formed in the liquid state and then hardened to a rigid solid is called:

Choose an answer

fiber

plastic

varnish

polyamide resin

The partial pressure of CH₄and O₂are 500 torr and 100 torr repectively in a 10 dm³vessel at 0°C. The ratio of number of molecules of CH₄: O₂is

Choose an answer

1: 2

5 : 1

5 : 2

2 : 1

A system absorbs 100 kJ heat and performs 50 kJ work on the surroundings. The increase in internal energy of the system is

Choose an answer

50kJ

100 kJ

150kJ

5000 kJ

The main pollution of leather tanneries in the waste is due to the salt of

Choose an answer

Chromium

Copper

Chromium

Lead

Enzymes consist of

Choose an answer

proteins only

proteins and non-protein parts

fats only

futs and non-fatty components

CO₂gas is dissolved in water due

Choose an answer

dipole-dipole interactions

higher molecular mass of CO₂

ion dipole attractive forces

hydrogen bonding

Indicate the number of open chain isomers of C6H14

Choose an answer

4

5

6

7

The working condition/s for SHE

Choose an answer

1atm pressure

1M H-solution

298K temperature

All of these

Orbitals having same energy are called

Choose an answer

Hybrid orbitals

Valence orbitals

Degenerate orbitals

D-orbitals

Depletion of ozone layer is due to

Choose an answer

Oxides of nitrogen

Oxides of carbon

Oxides of sulphur

None of the above

Ethyl alcohol on oxidation with K₂Cr₂O₇gives

Choose an answer

Acetic acid

Acetaldehyde

Formaldehyde

Formic acid

Which has highest 1st I.E.

Choose an answer

Br

Cl

F

l

When hydrogen cyanide is added to an Aldehyde in the presence of ammonia it is called

Choose an answer

Strecker synthesis

Cory house synthesis

Williamson;s synthesis

None of these

When alkyl halides are heated with aqueous solution of ammonia at about 100°C, amines are formed. This reaction is known as

Choose an answer

Williamsons synthesis

GHoffmans reaction

Wurtz reaction

Clemensen reaction

Which one of the following is not an example of chain growth polymer?

Choose an answer

Neoprene

Bunna-S

PMMA

Glyptal

The disaccharide present in milk is

Choose an answer

Sucrose

Maltose

Lactose

Cellobiose

Which of the following is not charged particle

Choose an answer

Proton

Electron

Neutron

Hydrogen nucleus

Biodegradable pollutant is

Choose an answer

Plastic

Asbestos

Sewage

Mercury

On adding sodium nitroprusside ketones give

Choose an answer

Red

Wine red

White

Orange

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