100 mL of 0 . 1 M NaHC 2 O 4 is neutralised by mL of 0 . 1 M NaOH and V 2 mL of a M KMnO 4 separately, then for complete neutralisation:

If, M of KMnO 4 is 0 . 1 M then, V 2 = 20 mL .

Volume of NaOH required = 200 mL .

If, M of KMnO 4 is 0 . 2 M then, V 2 = 20 mL .

HARD

JEE Main

IMPORTANT

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Which of the following are not valid reactions for iodometric titrations?

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Important Questions on Some Basic Concepts, Mole Concept and Stoichiometry

HARD

JEE Main

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part 1 JEE Main & Advanced>Chapter 1 - Some Basic Concepts, Mole Concept and Stoichiometry>DPP 1.6>Q 20

100 mL

0.1 M {NaHC}_{2} O_{4}

is neutralised by

mL

0.1 M NaOH

and

V_{2} mL

of a

M {KMnO}_{4}

separately, then for complete neutralisation:

HARD

JEE Main

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part 1 JEE Main & Advanced>Chapter 1 - Some Basic Concepts, Mole Concept and Stoichiometry>DPP 1.6>Q 21

A mixture of

{Na}_{2} C_{2} O_{4}

and

H_{2} C_{2} O_{2}

requires

100 mL

0.1 M {KMnO}_{4}

for complete neutralisation. The same mixture on neutralisation by a base requires

50 mL

0.2 M NaOH

solution. For these reactions which of the following are correct?

HARD

JEE Main

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part 1 JEE Main & Advanced>Chapter 1 - Some Basic Concepts, Mole Concept and Stoichiometry>DPP 1.6>Q 22

Reduction of the metal centre in aqueous permanganate ion involves:

MEDIUM

JEE Main

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part 1 JEE Main & Advanced>Chapter 1 - Some Basic Concepts, Mole Concept and Stoichiometry>DPP 1.6>Q 23

Which of the following samples of reducing agents is/are chemically equivalent to

25 ml

0.2 N {KMnO}_{4}

to be reduced to

{Mn}^{+ 2}

and water?

HARD

JEE Main

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part 1 JEE Main & Advanced>Chapter 1 - Some Basic Concepts, Mole Concept and Stoichiometry>DPP 1.6>Q 24

In the titration of $K_{2} {Cr}_{2} O_{2}$ and ferrous sulphate, following data is obtained:

$V_{1} mL$ of $K_{2} {Cr}_{2} O_{2}$ solution of molarity $M_{1}$ requires $V_{2} mL$ of ${FeSO}_{4}$ solution of molarity $M_{2}$ .

Which of the following relations is/are true for the above titration?

HARD

JEE Main

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part 1 JEE Main & Advanced>Chapter 1 - Some Basic Concepts, Mole Concept and Stoichiometry>DPP 1.6>Q 25

0.1 M

solution of

KI

reacts with excess of

H_{2} {SO}_{4}

and

{KIO}_{3}

solutions, according to equation

5 I^{-} + {IO}_{3}^{-} + 6 H^{+} ⟶ 3 I_{2} + 3 H_{2} O

; which of the following statements is/are correct?

MEDIUM

JEE Main

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part 1 JEE Main & Advanced>Chapter 1 - Some Basic Concepts, Mole Concept and Stoichiometry>DPP 1.7>Q 1

Calculate the equivalent mass of each oxidant and reductant in:

${FeSO}_{4} + {KClO}_{3} ⟶ KCl + {Fe}_{2} {({SO}_{4})}_{3}$

MEDIUM

JEE Main

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part 1 JEE Main & Advanced>Chapter 1 - Some Basic Concepts, Mole Concept and Stoichiometry>DPP 1.7>Q 1

Calculate the equivalent mass of each oxidant and reductant in:

${Na}_{2} {SO}_{3} + {Na}_{2} {CrO}_{4} ⟶ {Na}_{2} {SO}_{4} + Cr (OH)_{3}$

Which of the following are not valid reactions for iodometric titrations?

Important Questions on Some Basic Concepts, Mole Concept and Stoichiometry

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