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physical Chemistry II test II

Total questions: 19

Worksheet time: 10mins

Name
Class
Date
1.

Hittorf’s rule is related to

a)

Transport number

b)

Solubility product

c)

Ionic product

d)

Dilution law

2.

Transport number can be determined using

a)

Moving boundary method

b)

Conductivity method

c)

Potentiometric method

d)

Spectroscopy

3.

Common ion effect reduces

a)

Degree of dissociation

b)

Conductance

c)

Solubility

d)

All of the above

4.

A gas electrode consists of

a)

A gas in contact with its ion solution

b)

A metal in contact with its salt

c)

A redox couple

d)

An insoluble salt

5.

In a metal/metal ion electrode, the reaction involves

a)

A metal and its oxidation state

b)

A gas and its ion

c)

Two metals in contact

d)

A complex formation

6.

The sign convention for standard electrode potentials is based on

a)

Reduction potentials

b)

Oxidation potentials

c)

Activity coefficients

d)

Solubility product

7.

C₃V point group contains

a)

Only inversion center

b)

One C₂ axis and one mirror plane

c)

No symmetry elements

d)

One C₃ axis and three vertical planes

8.

A symmetry operation that leaves an object unchanged after rotation is

a)

Rotation symmetry

b)

Reflection symmetry

c)

Translation symmetry

d)

Inversion symmetry

9.

A group satisfying the condition AB = BA for all elements is called

a)

Abelian

b)

Non-Abelian

c)

Cyclic

d)

Irregular

10.

A symmetry element corresponding to reflection through a plane is

a)

Mirror plane

b)

Rotation axis

c)

Inversion center

d)

Identity operation

11.

The point group of H₂O is

a)

C₂V

b)

C₃V

c)

D₃h

d)

Td

12.

The Sn symmetry element corresponds to

a)

Improper rotation

b)

Reflection

c)

Inversion

d)

Identity

13.

A molecule is IR active if it exhibits

a)

A change in dipole moment

b)

A symmetric structure

c)

No dipole moment

d)

No vibrational motion

14.

The microwave region of the electromagnetic spectrum is used to study

a)

Vibrational spectra

b)

Rotational spectra

c)

Electronic spectra

d)

Nuclear spectra

15.

A non-radiative transition from a singlet excited state to a triplet state is called

a)

Intersystem crossing

b)

Phosphorescence

c)

Fluorescence

d)

Resonance energy transfer

16.

The law stating that light intensity decreases exponentially as it passes through a medium is

a)

Lambert’s law

b)

Stark-Einstein law

c)

Grothus-Draper law

d)

Le Chatelier’s principle

17.

The infrared region is used to study

a)

Nuclear transitions

b)

Rotational transitions

c)

Electronic transitions

d)

Vibrational transitions

18.

Galvanic cells operate based on

a)

Spontaneous redox reactions

b)

Non-spontaneous redox reactions

c)

Decomposition reactions

d)

Combustion reactions

19.

The conventional representation of an electrochemical cell is called

a)

Electrochemical series

b)

Cell notation

c)

Electrolysis

d)

Faraday’s law