Electrochemistry and other Physicochemical and Instrumental method

Question 1

Study of chemical processes that cause electrons to move.

Answer 1

Electrochemistry

Question 2

Movement of electrons, generated by movements of electrons from one element to another reaction (Redox Reaction)

Answer 2

Electricity

Question 3

Transfer of charge, measured in Amperes

Answer 3

Electric current

Question 4

Surfaces at which oxidation and reduction half-reactions occur

Answer 4

Electrodes

Question 5

Involves electron loss and electron gain

Answer 5

Half-reaction in Redox reaction

Question 6

Potential of a cell consisting of electrode concerned acting as a cathode and the standard hydrogen electrode as an anode.

Answer 6

Electrode Potential

Question 7

Study of voltage, current, time relationships during electrolysis carried out in a cell.

Answer 7

Voltammetry

Question 8

Electrodes used in Voltammetry

Answer 8

Working/Indicator Electrode
Reference Electrode
Auxilliary Electrode

Question 9

Potential is dependent on concentration of the ion to be determined

Answer 9

Working/Indicator Electrode

Question 10

Maintains a constant potentials throughout the measurement

Answer 10

Reference Electrode

Question 11

Used to measure the potential of the working electrode

Answer 11

Reference Electrode

Question 12

Where electrolysis takes place

Answer 12

Working/Indicator Electrode

Question 13

Carries the electrolysis current and works with the working electrode

Answer 13

Auxilliary Electrode

Question 14

Method of analysis based on current measurement resulting from electrolysis of an electronegative species at a given electrode potential under controlled condition.

Answer 14

Polarography ⭐

Question 15

Dropping Mercury electrode

Answer 15

Working Electrode

Question 16

Pool of Mercury at the base of the cell

Answer 16

Auxilliary Electrode

Question 17

Study of electrode potentials and determine the CONCENTRATION of an ionic species in a solution

Answer 17

Potentiometry

Question 18

Determination of pH / conc of H+ ions

Answer 18

Potentiometry

Question 19

Electrodes used in Potentiometry

Answer 19

Hydrogen Electrode
Quinhydrone Electrode
Glass Electrode

Question 20

Ultimate standard for pH measurements

Answer 20

Hydrogen Electrode

Question 21

Avoid difficulties with the hydrogen electrode

Answer 21

Quinhydrone Electrode

Question 22

Most popular and replaces both electrode

Answer 22

Glass Electrode

Question 23

Rotatory Power

Answer 23

Optical Activity

Question 24

Ability or power to rotate the plane of polarized light

Answer 24

Rotatory Power/Optical Activity

Question 25

Devices used in determination of optical activity

Answer 25

Polariscope
Polarising microscope

Question 26

Used for the examination of liquid

Answer 26

Polariscope

Question 27

Used for the examination of solids

Answer 27

Polarizing microscope

Question 28

Prism made of iceland spar/Calcite

Answer 28

NICOL Prism

Question 29

Measurement of the light which is bent

Answer 29

Refractometry

Question 30

The extent and direction of refraction are dependent upon the difference between the ___________ of the two substance

Answer 30

densities

Question 31

Ratio of the velocity of light in air to the velocity of light in the medium

Answer 31

Index of Refraction

Question 32

Index of refraction is the ratio of the sine of the angle of _______ to the since of the angle of ______

Answer 32

Index of refraction is the ratio of the sine of the angle of incidence to the since of the angle of refraction

Question 33

The angle between ray in the first medium and the normal

Answer 33

Angle of incidence

Question 34

Corresponding angle in the second medium

Answer 34

Angle of refraction

Question 35

Uses of Refractometry

Answer 35

Identity and purity of drugs

Strength and purity of solution or proportion in which liquids are mixed