When metal oxides or metal hydroxides react with ___, they form salt and water.

Q. When metal oxides or metal hydroxides react with acid, they form salt and X. What is X?

Q. When metal oxides react with ___, they form salt and water.

Q. Metals react with water to form oxides or hydroxides and

Q. Few statements regarding the properties of bases are given below. Mark the correct statements
(i) Sodium hydroxide and potassium hydroxide are soluble in water.
(ii) Calcium hydroxide and magnesium hydroxide are partially soluble in water.
(iii) All metallic hydroxides react with acids to form their respective metallic salts.
(iv) Metallic oxides are acidic oxides hence they react with acids to form salts.