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Standard XII

Chemistry

Nitric Acid

How many of t...

Question

How many of the following salts are white and soluble in dilute $H N O_{3}$ ?
$B a C r O_{4}, H g_{2} C r O_{4}, Z n S, B a S O_{4}, B a S_{2} O_{3}, C H_{3} C O O A g . A g N O_{2}$

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Solution

Three salts are white and soluble in dilute $H N O_{3}$ . They include
$Z n S, C H_{3} C O O A g . A g N O_{2}$

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Similar questions

Q. How many of the following substances are soluble in concentrated

H N O_{3}

B a S O_{4}, C u S, P b S, H g S

Q. The solubility product of

B a S O_{4}

and

B a C r O_{4}

25

are

1 \times 10^{- 10}

and

1 \times 10^{- 10}

respectively. Calculate the solubilities of

B a S O_{4}

and

B a {C r O}_{4}

A white coloured inorganic salt gives the following reactions.

(i) It is soluble in water and the solution has sweet taste.
The solution turns black in presence of $H_{2} S$
ii) The solution gives a white precipitate with dilute HCl which is soluble in hot water.

iii) The salt when heated gives acetone and a yellow coloured residue. Identify the salt (A) and give chemical reactions.

Q. Zn reacts with dilute

H N O_{3}, C o n c . H N O_{3}

and very dilute

H N O_{3}

. The oxidation number of nitrogen changes from

H N O_{3}

are

a, b, c

in product

X, Y, Z

respectively. What is the value of

(a + b + c)

is
(a)

Z n + H N O_{3} \to Z n (N O_{3})_{2} + " X " + H_{2} O

dilute (

20 %

)
(b)

Z n + H N O_{3} \to Z n (N O_{3})_{2} + " Y " + H_{2} O

Conc (

70 %

)
(a)

Z n + H N O_{3} \to Z n (N O_{3})_{2} + " Z " + H_{2} O

very dilute (

6 %

)

A white coloured inorganic salt gives the following reactions.

iii) The salt when heated gives acetone and a yellow coloured residue. Identify the salt (A) and give chemical reactions.

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How many of the following salts are white and soluble in dilute HNO3?BaCrO4,Hg2CrO4,ZnS,BaSO4,BaS2O3,CH3COOAg.AgNO2

Three salts are white and soluble in dilute HNO3. They include ZnS,CH3COOAg.AgNO2

How many of the following salts are white and soluble in dilute $H N O_{3}$ ?
$B a C r O_{4}, H g_{2} C r O_{4}, Z n S, B a S O_{4}, B a S_{2} O_{3}, C H_{3} C O O A g . A g N O_{2}$

Three salts are white and soluble in dilute $H N O_{3}$ . They include
$Z n S, C H_{3} C O O A g . A g N O_{2}$