Hydrogen peroxide in its reaction with KIO 4 and NH 2 OH respectively, is acting as a

reducing agent, oxidising agent

oxidising agent, oxidising agent

oxidising agent, reducing agent

The following reactions show the H 2 O 2 behaviour in I and II reactions as: I. PbS s + 4 H 2 O 2 aq ⟶ PbSO 4 s + 4 H 2 O l II . HOCl + H 2 O 2 ⟶ H 3 O + + Cl - + O 2

Oxidising in acidic medium and reducing in acidic medium

Oxidising in acidic medium and reducing in basic medium

Reducing in acidic medium and oxidising in basic medium

Reducing in acidic medium and oxidising in acidic medium

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Which of the following is incorrect?

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Important Questions on Hydrogen

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Chemistry>Inorganic Chemistry>Hydrogen>Structure of Hydrogen Peroxide

When

H_{2} O_{2}

is added to an acidified

K_{2} C r_{2} O_{7}

solution

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Chemistry>Inorganic Chemistry>Hydrogen>Structure of Hydrogen Peroxide

The volume strength of

1 M H_{2} O_{2}

is:

(Molar mass of

H_{2} O_{2} = 34 g mol^{- 1}

)

MEDIUM

Chemistry>Inorganic Chemistry>Hydrogen>Structure of Hydrogen Peroxide

The strengths of

5.6

volume hydrogen peroxide (of density

1 g / mL

) in terms of mass percentage and molarity

(M)

respectively, are: (Take molar mass of hydrogen peroxide as

34 g / mol

)

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Structure of Hydrogen Peroxide

Hydrogen peroxide, in the pure state, is :

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Chemistry>Inorganic Chemistry>Hydrogen>Structure of Hydrogen Peroxide

Hydrogen peroxide in its reaction with KIO₄ and NH₂OH respectively, is acting as a

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Structure of Hydrogen Peroxide

The volume strength of

8.9 M H_{2} O_{2}

solution calculated at

273 K

and 1 atm is

........ (R = 0 .0821 L atm K^{- 1} {mol}^{- 1})

(rounded off to the nearest integer)

HARD

Chemistry>Inorganic Chemistry>Hydrogen>Structure of Hydrogen Peroxide

Among statements

(a) - (d)

, the correct ones are:

(a)

Decomposition of hydrogen peroxide gives di-oxygen.

(b)

Like hydrogen peroxide, compounds, such as

K C l O_{3}, P b (N O_{3})

and

{N a N O}_{3}

When heated liberate di-oxygen.

(c)

2

-Ethylanthraquinone is useful for the industrial preparation of hydrogen peroxide.

(d)

Hydrogen peroxide is used for the manufacture of sodium perborate.

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Chemistry>Inorganic Chemistry>Hydrogen>Structure of Hydrogen Peroxide

When

2.0 mL

15.18 % (w / v) H_{2} O_{2}

solution is decomposed the volume of oxygen liberated at

STP

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Structure of Hydrogen Peroxide

The strength of $11.2$ volume solution of $H_{2} O_{2}$ is

[Given that, the molar mass of $H = 1 g m o l^{- 1}$ and $O = 16 g m o l^{- 1}$ ]

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Chemistry>Inorganic Chemistry>Hydrogen>Structure of Hydrogen Peroxide

The reaction of aqueous

K M n O_{4}

with

H_{2} O_{2}

in acidic conditions gives:

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Structure of Hydrogen Peroxide

Consider the following equations :
$2 {Fe}^{2 +} + H_{2} O_{2} \to xA + yB$

(in basic medium)

$2 {MnO}_{4}^{-} + 6 H^{+} + 5 H_{2} O_{2} \to x^{'} C + y^{'} D + z^{'} E$

(in acidic medium)

The sum of the stoichiometric coefficients $x, y, x^{'}, y^{'}$ and $z^{'}$ for products $A, B, C, D$ and $E$ respectively, is _______

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Structure of Hydrogen Peroxide

In which of the following reactions, hydrogen peroxide acts as an oxidizing agent?

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Structure of Hydrogen Peroxide

Hydrogen peroxide is stored away from light because it can get decomposed when exposed to light as

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Structure of Hydrogen Peroxide

The chemical nature of hydrogen peroxide is:

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Chemistry>Inorganic Chemistry>Hydrogen>Structure of Hydrogen Peroxide

5.0 mL

\underline{X}

volume hydrogen peroxide solution on decomposition produces

100 mL

of oxygen at STP. The value of

\underline{X}

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Chemistry>Inorganic Chemistry>Hydrogen>Structure of Hydrogen Peroxide

The following reactions show the $H_{2} O_{2}$ behaviour in $I$ and $II$ reactions as:
$\begin{array}{l} I. PbS (s) + 4 H_{2} O_{2} (aq) ⟶ {PbSO}_{4} (s) + 4 H_{2} O (l) \end{array}$

$II . HOCl + H_{2} O_{2} ⟶ H_{3} O^{+} + {Cl}^{-} + O_{2}$

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Structure of Hydrogen Peroxide

What is the product of the reaction of

H_{2} O_{2}

with

{Cl}_{2} ?

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Chemistry>Inorganic Chemistry>Hydrogen>Structure of Hydrogen Peroxide

The bond angle

H - O - O

H_{2} O_{2}

in gaseous phase is

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Chemistry>Inorganic Chemistry>Hydrogen>Structure of Hydrogen Peroxide

Hydrogen peroxide oxidises

{[Fe {(CN)}_{6}]}^{4 -} to {[Fe {(CN)}_{6}]}^{3 -}

in acidic medium, but reduces

{[Fe {(CN)}_{6}]}^{3 -} to {[Fe {(CN)}_{6}]}^{4 -}

in alkaline medium. The other products formed are, respectively

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Structure of Hydrogen Peroxide

From the following statements, choose the incorrect statement regarding

H_{2} O_{2}

Which of the following is incorrect?

Important Questions on Hydrogen

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