Butter of tin is

Options

A. `SnCl_(2).5H_(2)O`
B. `SnCl_(2).2H_(2)O`
C. `SnCl_(4).4H_(2)O`
D. `SnCl_(4).5H_(2)O`

Answer

D

Explanation

Stannic chloride `(SnCl_(4))` is hygroscopic and forms crystalline hydrates containing `3, 5, 6`, and `8` molecules of water of crystallization. The pentahydrate `SnCl_(4) . 5H_(2)O`, is known as "butter of tin" or "oxymuriate of tin." It is used as a mordant for dyes.