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Solution


Q.

Consider the following oxides; N2O,NO,CO,CO2,N2O5,Al2O3,ZnO,V2O5

If

X = number of neutral oxides,

Y = number of acidic oxides

Z = number of an amphoteric oxides

Then [(X+Y)-(Z)] is _____.

Ans.

(2)

X = 3, Y = 2, Z = 3