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Standard XII

Chemistry

Preparations and Reactions of Sodium Oxide

A is binary c...

Question

(A) is binary compound of a univalent metal 1.422 g of (A) reacts completely with 0.321 g of sulphur in an evacuated and sealed tube to give 1.743 g of white crystalline solid(B) that formed a hydrated double salt(C) with $A l_{2} (S O_{4})_{3}$ .identify (A) :

K O_{2}

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N a O_{2}

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K_{2} S O_{4}

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N a_{2} S O_{4}

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Solution

The correct option is A $K O_{2}$
Option (A) is correct.
A is $K O_{2}$ .

$2 K O_{2} + S \to K_{2} S O_{4}$
$K_{2} S O_{4} + A l_{2} (S O_{4})_{3}$ $\to K_{2} S O_{4} . A l_{2} (S O_{4})_{3} .24 H_{2} O$

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Similar questions

Q. (A) is a binary compound of a univalent metal 1.422 g of (A) reacts completely with 0.321 g of sulphur in an evacuated and sealed tube to give 1.743 g of a white crystalline solid (B), that forms a hydrated double salt (C) with

{A l}_{2} ({S O}_{4})_{3}

. Here (A), (B) and (C) are identified as (A):

K O_{2}

, (B):

K_{2} S O_{4}

and (C):

K_{2} S O_{4} . A l_{2} (S O_{4})_{2} a l u m . 24 H_{2} O

If the given statement is true enter 1 else 0.

Q. (A) is binary orange coloured paramnetic compound of a univalent cation. 1.422 g of (A) reacts completely with 0.321 g of sulphur ina evacuated and sealed tube to give 1.743 g of a while crystalline solid (B) that forms hydrated double salt (C) with

A l_{2} (S O_{4})_{3}

; Here, compounds (A), (B), and (C) are

K O_{2}

K_{2} S O_{4}

and

K_{2} S O_{4} . A l_{2} (S O_{4})_{3} . 24 H_{2} O

respectively.
If true enter 1, else enter 0.

A

is a binary compound of a univalent metal. When

1.422 g

A

reacts completely with

0.321 g

of sulphur in an evacuated and sealed tube,

1.743 g

of a white crystalline solid

B

produces, which produces a hydrated double salt

C

with

A l_{2} (S O_{4})_{3}

. Identify

A, B,

and

C

Q. A binary salt (X) of alkali metal on heating with sulphur give (Y); (Y) with

B a C l_{2}

solution gave white ppt.

(Z) is insoluble in conc

H C l

. 14.2 g of (X) gave 23.3 g of (Z). Identify (X), (Y) and (Z) and explain reactions.

Q. A metal

M

reacts with sodium hydroxide to give a white precipitate

X

which is soluble in excess of

N a O H

to give

Y

. Compound

X

is soluble in

H C l

to form a compound

Z

. Identify

M, X, Y

and

Z

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(A) is binary compound of a univalent metal 1.422 g of (A) reacts completely with 0.321 g of sulphur in an evacuated and sealed tube to give 1.743 g of white crystalline solid(B) that formed a hydrated double salt(C) with Al2(SO4)3 .identify (A) :

The correct option is A KO2Option (A) is correct.A is KO2.2KO2+S→K2SO4K2SO4+Al2(SO4)3 →K2SO4.Al2(SO4)3.24H2O

(A) is binary compound of a univalent metal 1.422 g of (A) reacts completely with 0.321 g of sulphur in an evacuated and sealed tube to give 1.743 g of white crystalline solid(B) that formed a hydrated double salt(C) with $A l_{2} (S O_{4})_{3}$ .identify (A) :

The correct option is A $K O_{2}$
Option (A) is correct.
A is $K O_{2}$ .

$2 K O_{2} + S \to K_{2} S O_{4}$
$K_{2} S O_{4} + A l_{2} (S O_{4})_{3}$ $\to K_{2} S O_{4} . A l_{2} (S O_{4})_{3} .24 H_{2} O$