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Preparations and Reactions of Sodium Oxide

Lead sulphide...

Question

Lead sulphide in dilute nitric acid gives :

A

lead nitrate

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B

sulphur trioxide

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C

sulphur dioxide

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D

colloidal sulphur

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Solution

The correct options are
A lead nitrate
D colloidal sulphur
$3 P b S + 8 H N O_{3} ⟶ 3 P b {(N O_{3})}_{2} + 3 S + 2 N O + 4 H_{2} O$
When lead sulphide reacts with nitric acid, lead nitrate is formed, along with $c o l l o i d a l$ $s u l p h u r,$ $n i t r i c$ $o x i d e$ and water.

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Q. Choose the correct answer from the options given below:
(i) Hydroxide of this metal is soluble in sodium hydroxide solution.
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(b) Lead
(c) Silver
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(c) Sulphur trioxide
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Q. From the list of the substances given, name the substances which you would use to prepare each of the following salts:
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