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Byju's Answer

Standard XII

Chemistry

Conductivity MP BP and Electronegativity (Group 2)

Choose the co...

Question

Choose the correct answer form the alternatives given.
A solution of a compound $X$ in dilute $H C l$ on treatment with a solution of $B a C l_{2}$ gives a white precipitate of compound $Y$ which is insoluble in conc. $H N O_{3}$ and conc. $H C l$ . Compound $X$ imparts golden yellow colour to the flame.
$X (solution in dilute HCl) (imparts golden yellow colour) + B a C l_{2} ⟶ Y w h i t e p p t C o n c . H N O_{3} + - ------- \to C o n c H c l I n s o l u b l e$
What are compounds $X$ and $Y$ ?

X

M g C l_{2}

and

Y

B a S O_{4}

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X

C a C l_{2}

and

Y

B a S O_{4}

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X

N a_{2} S O_{4}

and

Y

B a S O_{4}

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X

M g S O_{4}

and

Y

B a S O_{4}

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Solution

The correct option is C $X$ is $N a_{2} S O_{4}$ and $Y$ is $B a S O_{4}$
$X (solution in dilute HCl) (imparts golden yellow colour) + B a C l_{2} ⟶ Y w h i t e p p t C o n c . H N O_{3} + - ------- \to C o n c H c l I n s o l u b l e$
Thecompounds $X$ and $Y$ are
$N a_{2} S O_{4} + B a C l_{2} \to B a S O_{4} + 2 N a C l$
(X) (Y)

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Similar questions

Q. A coordination compound X gives pale yellow colour with

A g N O_{3}

solution while its isomer Y gives white precipitate with

B a C l_{2}

. Two compounds are isomers of

C o B r S O_{4}

5 N H_{3}

. What could be the possible formula of X and Y?

Q. A red coloured mixed oxide (X) on treatment with conc.

H N O_{3}

gives a compound (Y). (Y) with HCl produces a chloride compound (Z) which can also be produced by treating (X) with cone. HCl. Compounds (X), (Y) and (Z) will be :

S O_{3}^{2 -}

and

S O_{4}^{2 -}

both give white precipitate with

B a C l_{2}

solution. Scheme to detect

S O_{3}^{2 -}

in presence of

S O_{4}^{2 -}

is given below. If true enter 1, if false enter 0.

B a S O_{4}

is insoluble in conc. HCl while

B a S O_{4}

remains soluble. Separate

B a S O_{4}

and add

B r_{2}

water into filtrate.

S O_{3}^{2 -}

is oxidised to

S O_{4}^{2 -}

and gives white precipitate of

B a S O_{4}

Q. When air is bubbled through solution of

C o (I I)

chloride and ammonium carbonate. Compound (

X

) having composition

C o ({C O}_{3}) . C l .4 {N H}_{3}

is formed. Compound (

X

) when treated with conc.

H C l

gives a violet coloured compound (

Y

) having composition

C o {C l}_{3} .4 {N H}_{3}

. Compound (

X

) when treated with a mixture of

H C l

and

H_{2} {S O}_{4}

gives a green coloured compound (

Z

) having composition

C o {C l}_{3} .4 {N H}_{3}

.
Type of isomerism involved in compound Y and Z is:

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.

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The correct option is C X is Na2SO4 and Y is BaSO4X(solution in dilute HCl)(imparts golden yellow colour)+BaCl2⟶YwhitepptConc.HNO3+−−−−−−−−→ConcHclInsoluble Thecompounds X and Y areNa2SO4+BaCl2→BaSO4+2NaCl (X) (Y)