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Byju's Answer

Standard XII

Chemistry

Hydrogen Peroxide

Assertion : ...

Question

Assertion : $X e F_{6}$ reacts with small quantity of water to form $X e O F_{4}$ . Reason: $X e F_{6}$ reacts with glass and form $X e O F_{4}$ .

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Assertion is incorrect but Reason is correct

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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
$X e F_{6} + H_{2} O \to X e O F_{4} + 2 H F$
$2 X e F_{6} + S i O_{2}$ (from glass) $\to 2 X e O F_{4} + S i F_{4}$

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Similar questions

Q. Assertion: The impurities such as

{SiO}_{2}

present in iron ore is removed by

{CaCO}_{3}

.

Reason:

CaO

formed by decomposition of

{CaCO}_{3}

reacts with

{SiO}_{2}

to form slag.

Assertion – The non-fusible impurities present in iron ore are removed by $C a C O_{3}$ .

Reason: $C a C O_{3}$ which decomposes into $C a O$ and $C O_{2}$ . The $C a O$ formed reacts with $S i O_{2}$ to remove silica

Assertion

Lithium sulphate does not form alums.

Reason

$L i^{+}$ is too small to form a stable lattice required for double-salt/alum formation.

Q. Assertion: The compressibility factor for

H_{2}

and

H e

(1 + \frac{P b}{R T})

Reason: The compressibility factor for

H_{2}

and

H e

can be derived from Van der Waal's equation.

Assertion (A) Phenol forms 2, 4, 6-tribromophenol on treatment with $B r_{2}$ in carbon disulphide at 273K.
Reason (R) Bromine polarises in carbon disulphide.
(a) Assertion and reason both are correct and reason is correct explanation of assertion.
(b) Assertion and reason both are wrong statements.
(c) Assertion is correct statement but reason is wrong statement.
(d) Assertion is wrong statement but reason is correct statement.
(e) Both assertion and reason are correct statements but reason is not correct explanation of assertion.

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Assertion :XeF6 reacts with small quantity of water to form XeOF4. Reason: XeF6 reacts with glass and form XeOF4.

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for AssertionXeF6+H2O→XeOF4+2HF2XeF6+SiO2 (from glass) →2XeOF4+SiF4

Assertion : $X e F_{6}$ reacts with small quantity of water to form $X e O F_{4}$ . Reason: $X e F_{6}$ reacts with glass and form $X e O F_{4}$ .

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
$X e F_{6} + H_{2} O \to X e O F_{4} + 2 H F$
$2 X e F_{6} + S i O_{2}$ (from glass) $\to 2 X e O F_{4} + S i F_{4}$