Question

name a salt formed by neutralization of insoluble base and dilute acid​

Answer 1

Answer:

An insoluble metal oxide reacts with a dilute acid to form a soluble salt. Copper(II) oxide, a black solid, and colourless dilute sulfuric acid react to produce copper(II) sulfate, giving a characteristic blue colour to the solution. Blue copper(II) sulfate pentahydrate crystals are obtained from this solution

Explanation:

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Answer 2

Na2Co3 + 2HCl ———— 2NaCl + H2O + CO2