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JAMB - Chemistry (1992 - No. 3)

wH2SO4 + xAI(OH)3 → yH2O + = zAI2(SO4)3. The respective values of w.x.y and z in the equation above are?
2,2,5 and 1
3,2,5 and 2
3,2,6 and 1
2,2,6 and 2

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