Question

Which of the following is obtained when auric chloride reacts with sodium chloride?

• A. $Na[AuCl]$
• B. $ Na\,[AuCl_{2}] $
• C. $ Na\,[AuCl_{3}] $
• D. $ Na\,[AuCl_{4}] $

Answer 1

Answer: (D)

When auric chloride reacts with sodium chloride then sodium chloroaurate is formed.
$\underset{\text{auric chloride}}{AuCl_3} + NaCl \to \underset{\text{sodium chloro aurate}}{Na[AuCl_4]}$
Auric chloride is red soluble crystalline solid. It is used in gliding glass and in photography.