Question

Which of the following relations is incorrect:

(a) 3 n al₂ (so₄)₃ = 0.5 m al₂ (so₄)₃
(b) 3 m h₂so₄ = 6 n h₂ so₄
(c) 1 m h₃po₄ = 1/3 n h₃po₄
(d) 1 m al₂ (so₄)₃ = 6 n al₂(so₄)₃