Question

A double salt which contains fourth period alkali metal (A) on heating at 500K gives (B). aqueous solution of (B) gives white precipitate with BaCl2 and gives a red colour compound with alizarin.Identify A and B​

Answer 1

Answer:

a is sodium

bis sulphate

Answer 2

Answer:

Explanatio:

k2so4 .al2(so4)3 .24H2O -----500k-----> k2so4 .al2(so4)3  24H2O

   (A)                                                                 (B)

(so4)2 + Bacl2 ------->Baso4 + 2 cl -