Question # 1

When i₂present in the aquous layer in the form of I^-1₃foes to CCI₄layer, then the change in colour is from

Choose an answer

Purple to brown

Purple to green

Green to brown

Brown to purple

Weak intermolecular forces are present in.

Choose an answer

Only gases

Only liquid

Only solids

gases, liquids and solids

In a electrolytic cell the electrons flow from

Choose an answer

Cathode to anode

Anode to cathode

From cathode to anode or opposite, depending upon the nature of electrolyte

All of the above

Which of the following species has unpaired electrons in anti bonding molecular orbitals

Choose an answer

O2

N2

B2

F2

The oxidation of O -atom in OF3 is.

Choose an answer

-2

+2

-1

+1

Equal masses of methane and oxygen are mixed in an empty container at 25°C, the fraction of total pressure exerted by oxygen is

Choose an answer

1/3

8/9

1/9

16/17

Which pair of mixture is called ideal solution.

Choose an answer

Chlorobenzene and bromobenzene

Water alcohol

Water ether

HCl and water

Which one of the following orbital will be filled first.

Choose an answer

4f

5d

3d

4s

The molecules of a gas show more deviation from ideal behaviour at low temperature, because

Choose an answer

Attractive force dominate at low temperature

Kinetic energies are increased

Collisions become less frequent

Densities of the gases increase

Diamond is a bad conductor of electricity because

Choose an answer

It has a tight structure

It has a high density

There are no free electrons present in the crystal of diamond to conduct electronics

None of these

"The components of which mixture can be separated by filtration".

Choose an answer

NaCl and CaCl2

Calcium carbonate and NaCl

Blue and green inks

Sand and naphthalene

Many element have fractional atomic masses. This is because.

Choose an answer

the mass of the atom is itself fractional

Atomic masses are average mases of Isobars

Atomic masses are average masses Isotopes

Atomic masses are average masses of Isotopes proportional to their relative abundance.

The largest number of molecules are present in

Choose an answer

3.6 of H2O

4.6 g of C2H5OH

2.8 g of CO

5.4 g of N2O5

Dipole moment of CO2 is.

Choose an answer

1.25 D

1.85 D

3.1 D

Zero

Nickel has isotopes

Choose an answer

3

5

6

11

Chromatography in which the stationary phase is a solid is classified as.

Choose an answer

Partition chromatography

Gas chromatography

Adsorption Chromatography

Thin layer chromatography

When external pressure is 23.7 torr, boiling point of water is

Choose an answer

100 ^oC

200^oC

98^oC

25^oC

Those elements whose electronegativities are 1.2 and 3.2, react to form

Choose an answer

Ionic bond

Covalent bond

Gaseous substance

Definiting a liquid substance

More Classes

Other Links

Chemistry Fsc Part 1 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