`AlF_(3)` is insoluble in anhydrous HF but when little KF is added to the compound it becomes soluble. On addition of `BF_(3),AlF_(3)` is precipitated. Write balanced chemical equation.

AIF_(3) is insoluble in anhydrous HF but when little KF is added to the compound it becomes soluble On addition of BF_(3),AIF_(3) precipitated Write the balanced chemical equations .

When potassium iodide solution is added to a solution of lead nitrate in a testtube, a precipitate is formed. Write the balanced chemical equation for this reaction.

AlF_(3) is insoluble in anhydrous HF but dissolves on addition of NaF. AlF_(3) precipitates out of the resulting solution when gaseous BF_(3) is bubbled through. Give reasons.

Write balanced equations for: BF_(3)+LiHto

When a solution of Zn^(2+) was added to a solution of NaOH , a clear solution was obtained. What NH_(4)C1 was added to the clear solution, Zn(OH)_(2) , precipitated. Using balanced chemical equation, explain these observations.

On adding a drop of barium chloride solution to an aqueous solution of sodium sulphite, white precipitate is obtained. Write a balanced chemical equation of the reaction involved.

What happens when a piece of : Silver metal is added to copper sulphate solution? Also, write the balanced chemical equation if the reaction occurs.