Question

do
Which alum is a double salt made up of two salts:
(1) Salt of a (SA + WB) + Salt of a (WA + WB)
(2) Salt of a (SA + SB) + Salt of a (SA + WB)
(3) Salt of a (SA+SB) + Salt of a (WA + WB)
(4) Salt of a (SA + WB) + Salt of a (WA + WB)​

Answer 1

Answer:

3................ I hope this answer please make as brinlist please like please

Answer 2

Answer:

Option B is the correct option

Explanation:

Double salt formed by strong acid + strong base and strong acid + week base is good double salt alum.

• Double salts are nothing but molecular compounds.
• Double salts exists only in the form of crystal lattice.
• They lose their identity on dissolution in water.
• Alum is an example of double salt.
• Its general formula is MIMIII[SO4]2·12H2O.

In other words we can say that double salts are the salts which contains more than one different cations or anions.

for e.g. Potassium sodium tartrate, Ammonium iron sulfate (also called as mohr's salt)

• Double salts only exists in solid state.
• When double salts are dissolved in water, they act as a complete different mixture of two or more components.
• Double salts are different from mixed crystal substances.

#SPJ3