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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$34 g$ of hydrogen peroxide is present in $1120 mL$ of solution. This solution is called:

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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 15

5 mL

solution of

H_{2} O_{2}

liberates

0.508 gm

of Iodine from an acidified

Kl

solution. What is the volume strength of the

H_{2} O_{2}

solution?

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 16

The volume of

0.25 M H_{3} {PO}_{3}

required to neutralise

25 mL

0.03 M Ca (OH)_{2}

is:

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 17

50 mL

of a solution containing

1 g

each of

{Na}_{2} {CO}_{3}

NaHC 0_{3}

and

NaOH

was titrated with

1 N HCl

. What will be the titre reading when only phenolphthalein is used as the indicator?

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 18

A mixture of

0.02 mole

{KBrO}_{3}

and

0.01 mole

KBr

was treated with excess of

KI

and acidified. The volume of

0.1 M {Na}_{2} S_{2} O_{3}

solution required to consume the liberated iodine will be:

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 19

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

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:

34 g of hydrogen peroxide is present in 1120 mL of solution. This solution is called:

Important Questions on Some Basic Concepts, Mole Concept and Stoichiometry

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$34 g$ of hydrogen peroxide is present in $1120 mL$ of solution. This solution is called: