Question # 1

If Cl2 is passed through hot NaOH. NaCIO3 is formed and the oxidation number of CI changes from

Choose an answer

-1 to 0

0 to +5

0 to-1

0 to +1

Which of following is oxidation state of oxygen in peroxides?

Choose an answer

-2

1/2

-1

+2

The working condition/s for SHE

Choose an answer

1atm pressure

1M H-solution

298K temperature

All of these

If a strip of Cu metal is placed in a solution of FeSO4

Choose an answer

Cu will be deposited

Cu and Fe both dissolve

Fe is precipitated out

No reaction take place

The cell which converts electrical energy to chemical energy is called

Choose an answer

Electrochemical cell

Voltaic cell

Galvanic cell

Down's cell

Only those metals can replace Hydrogen from dilute acids, which have

Choose an answer

High negative reduction potential

Low negative reduction potential

High positive reduction potential

low positive reduction potential

In which molecule. all atoms are coplanar?

Choose an answer

CH4

BF3

NH3

PH3

The electrochemical series is based on

Choose an answer

pH scale

Redox scale

Hdrogen scale

Arrhenius scale

The standard reduction potential of Zinc is

Choose an answer

0.76V

0.34

-0.34V

-0.76V

Electrolytic products of dilute aqueous solution of sodium sulphate is

Choose an answer

Na. SO2

H2. S02

Na. O2

H2,O2

The products of electrolysis of which of the followings are known

Choose an answer

Fused electrolyte

Aqueous solution of eleetrolyte

Solid electrolyte

Solid metal

By the electrolysis of CuCl2 using inert electrodes of platinum which species is deposited at cathode

Choose an answer

H2

O2

Cu

CI

Which of the following salts would give the same products irrespective of whether its molten form or concentrated aqueous solution is electrolysed?

Choose an answer

Magnesium bromide

Magnesium sulphate

Copper sulphate

Copper chloride

The potential of SHE is taken as zero which is avalue

Choose an answer

Reference

Arbitrary

Exact

Experimental

SHE acts as anode when connected with Cu electrode but act as cathode with Zn electrode

Choose an answer

Zn has less reduction potential than hydrogen and Cu

Zn has high reductionl potential than hydrogen

and Cu

Zn is below electrochemical series than hydrogen and Cu

Zn has least tendency to lose electron

Which of the following metal does not liberate hydrogen on reaction with acid?

Choose an answer

Mg

Pt

Zn

Ca

The reduction potentials of non-metals are A =+0.54V, B=+1.08V, C=+1.36V. D= +2.87V Which non -metal can displace all other from aqucous solution of their salts

Choose an answer

A

C

B

D

Rusting of iron metal Fe occurs when Fe gets converted into Fe2O3 What happen with Fe?

Choose an answer

F'e is neutralized

Fe is sublimed

Fe is reduced

Fe is oxidized

The value of oxidation number of chlorine in HCIOs is

Choose an answer

+7

+5

-1

+3

During the electrolysis of Fused NaCI, the products are

Choose an answer

Na and H2

Na and Cl2

Na and O2

H2 and Cl2

More Classes

Other Links

MDCAT Chemistry Chapter 8 Thermo-chemistry and Energetics of chemical reactions 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

Choose an answer

Choose an answer