Question

Identify one cationic radical by performing dry and wet test of the given
inorganic salt 'M3'​

Answer 1

Answer:

Mir Qamar-ud-din Khan Siddiqi Bayafandi (20 August 1671 – 1 June 1748) also known as Chin Qilich Kamaruddin Khan, Nizam-ul-Mulk, Asaf Jah and Nizam I, was the 1st Nizam of Hyderabad. A trusted nobleman and General of Mughal Emperor Aurangzeb (1677-1707 AD), he served as the Mughal governor of Deccan (1713-1715 AD) and (1720-1722 AD), Mughal Grand vizier (1721-1724 AD) and the founder of the Asaf Jahi dynasty (1724 AD) of which he was the Nizam I (1724-1748 AD)

Answer 2

Identification of Anion Radicals

Explanation:-

Before further going to anion identification physical examination is done by the analysis of colour and smell.

1.Then after Dry heating Test is performed:-

This Test includes a small amount of salt in a dry test tube this when heated, some salts undergo decomposition and evolve gases.

 $S^{-2}, CO_{3} ^{-2}, NO_{2} ^{-} and SO_{3} ^{-2}$react with dilute $H_{2} SO_{4}$ to give out $H_{2}S, CO_{2}, NO_{2} and SO_{2}$ gases respectively. And then gases identify the presence of anion present.

Such as Carbonate Test:- On treating the solid carbonate,  is a release with effervescence.

$CaCO_{3} + H_{2} SO_{4}$ → $CaSO_{4} + H_{2} O+ CO_{2}$  ↑

2.Now, Wet Tests for Acid Radicals are performed:-

Carbonate Confirmation ($CO_{3} ^{2-}$)

Carbonate on reaction with dilute HCL release gas that reacts with a lime ppt of calcium carbonate that turns lime-water milky.

$CaCO_{3} +2HCl$ → $CaCl_{2} + CO_{2} + H_{2}O$  

$Ca(OH)_{2} + CO_{2}$ → $CaCO_{3}$ ↓ + $H_{2}O$