A) 4
B) 1
C) 2
D) None of these
Correct Answer: C
Solution :
Potash alum is a double salt. Potash alum : \[{{K}_{2}}S{{O}_{4}}.A{{l}_{x}}{{(S{{O}_{4}})}_{3}}.24{{H}_{2}}O\]Ion | |
Valency |
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