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Balanced Chemical Equation

State the obs...

Question

State the observation and give a balanced equation .

excess of ammonium hydroxide is added to a substance obtained by adding HCl in Silver nitrate solution.

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Solution

When hydrochloric acid is added to silver nitrate solution a white precipitate is obtained which is soluble in excess of Ammonium hydroxide solution.

AgNO₃ + HCl → AgCl + HNO₃

AgCl + 2NH₄OH → [Ag(NH₃)₂]Cl + 2H₂O.

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Q. Observations for the following reactions.
Excess of Ammonium hydroxide is added to a substance obtained by adding hydrochloric acid in silver nitrate solution.

Q. Write the observations, and balanced equations for the following reactions:
(i) Sodium hydroxide is added dropwise to a solution of zinc sulphate, till it is in excess.
(ii) Ammonium hydroxide is added first in a small quantity, and then in excess, to a solution of copper sulphate.
(iii) Excess of ammonium hydroxide is added to a substance, obtained by adding hydrochloric acid to silver nitrate solution.
(iv) Moist starch iodide paper is placed at the mouth of a test-tube containing chlorine gas.
(v) A paper dipped in potassium permanganate solution is placed at the mouth of a test-tube, containing sulphur dioxide gas.

Q. State two relevant observations for the reaction : Ammonium hydroxide solution is added to copper (II) nitrate solution in small quantities and then in excess.

Q. Assertion :Ammonium hydroxide solution is added to zinc nitrate solution slowly and then in excess we see white precipitates are soluble Reason: Ammonium hydroxide solution is added to zinc nitrate solution slowly white precipitates of ammonium nitrate is formed and when ammonium hydroxide is added in excess then the white precipitates are soluble in it

Q. State one observation for each of the following:
Excess ammonium hydroxide solution is added to lead nitrate solution.

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