Question # 1

Which of the following is not a macromolecule?

Choose an answer

diamond

graphite

iodine

silica

What is not correct about ∆HF

Choose an answer

It is always negative

Ìts value gives an idea about the relative stability of reactants and the products.

Its value can be greater or less than zero

Value depends upon nature of bonds

Which one of the following is not an alicyclic compound?

Choose an answer

Cyclohexene

Cyclohexane

Benzene

Cyclopentane

The particles in solids are

Choose an answer

widely separated and moving randomly

widely separated not moving

moving randomly but not separated

close together and vibrating slightly

Half of the mass of atmosphere is concentrated above earth at the hieght of

Choose an answer

40 Km

25-28 Km

5-6 Km

100 Km

If internal energy of the system is increased

Choose an answer

Change in state of the system may occur

Temperature of the system may rise

Chemical reaction may take place

All of these

What is the effect of polluted air on environment:

Choose an answer

ozone

acid rain

global warming

smog

Casenogen is

Choose an answer

Chromoprotein

Phosphoprotein

Glycoprotein

Lipoprotein

The carbon atom of an alkyl group attached with halogen atom is called

Choose an answer

Electrophile

Free redical

Nucleophile

Nucleophilic centre

Cotton has cellulose in it:

Choose an answer

96%

97%

98%

99%

Select the name of ready plant from which word ''Paper'' is derived:

Choose an answer

sun flower

papyrus

water hyacinth

rose

Which of the following transition metal ions will have definite value of magnetic moment?

Choose an answer

Se³⁺

Ti³⁺

Cu⁺

Zn²⁺

The reaction rate is expressed in the units of

Choose an answer

Mol dm^-3S^-

Mol dm^-3

Mol dm^-3N^-

dm^-3S^-

Which carbonate of alkali metals is insoluble in water

Choose an answer

Na₂CO₃

K₂CO₃

Li₂CO₃

Cs₂CO₃

The iron obtained from blast furnace is

Choose an answer

Pig iron

Wrought ion

Soft ion

Steel

An electrochemical cell is based upon

Choose an answer

Acid-base reaction

Redox reaction

Nuclear reaction

None of the above

Choose an answer

Equal volumes of N₂and H₂are reacting

Equal masses of N₂and H₂are reacting

The reaction has stopped

The same amount of ammonia is formed as is decomposed into N₂and H₂

A transition metal complex can be recognized by various terms. Which is not the proper term

Choose an answer

Central metal ion

Coordination number

Ligand

Geometry of complex

Which statement is incorrect for and ideal solution

Choose an answer

The forces of attractions between solute and solvent molecules are same

There is no evolution or absorption of heat

Volume of the solution is less than sum of volumes of individual components

Vapour pressure of solution is directly proportional to the mole fraction of solvent

To purify water which has mud dissolved in it, A substance which coagulates the suspended particles is used. The coagulant may be

Choose an answer

Ag⁺

Cu²⁺

Al³⁺

Si⁴⁺

0.1 MHCI has pH = 1.0, it is about 100 times stronger than acetic acid. Then pH of acetic acid will be

Choose an answer

0.1

2.0

1.3

3.0

When fused PbBr₂is electrolyzed

Choose an answer

Bromine appears at he cathode

Lead is deposited at the cathode

Lead appears at the anode

None of these happens

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