Consider the following substances :ZnO, NO2, Na2O, SiO2, CO . and BaO2. Which of them I. dissolves in water to give a solution o

Question

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Consider the following substances :ZnO, NO2, Na2O, SiO2, CO . and BaO2. Which of them I. dissolves in water to give a solution o

f pH greater than 7? II. is/are acidic oxide insoluble in water? III. is a mixed/double acid anhydride? IV. has no effect on moist litmus paper? V. is a peroxide? VI. is amphoteric?

Chemistry

1 answer:

morpeh [17] · Answer 1 · 2021-12-11T05:47:57+03:00

Answer:

Explanation:

I ) Oxide that dissolves in water to give a solution of pH greater than 7 - Na₂O

It is a metallic oxide and therefore basic in nature . It will dissolve in water to give pH more than 7 .

II )

Acidic oxide insoluble in water - SiO₂ . It reacts with CaO to give CaSiO₃

III ) NO₂

Acid anhydride : SiO₂ It is anhydride of H₂SiO₃ ( H₂O + SiO₂ )

IV ) No effect on moist paper - CO . It is neutral oxide .

V ) Peroxide - Ba O₂

VI ) Amphoteric - ZnO