[B] State one observation for each of the following.
i. A small piece of zinc is added to dilute sulphuric acid.
ii. Sodium hydroxide is added to Zinc chloride solution, first slowly then excess. iii. Ammonium hydroxide is added to Lead nitrate solution first slowly then an excess.
iv. Sodium hydroxide is added to Ferric chloride solution first slowly and then in excess.
v.Addition of ammonium hydroxide in a solution of magnesium nitrates first slowly then excess.
i. A small piece of zinc is added to dilute sulphuric acid.
ii. Sodium hydroxide is added to Zinc chloride solution, first slowly then excess. iii. Ammonium hydroxide is added to Lead nitrate solution first slowly then an excess.
iv. Sodium hydroxide is added to Ferric chloride solution first slowly and then in excess.
v.Addition of ammonium hydroxide in a solution of magnesium nitrates first slowly then excess.
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i. A small piece of zinc is added to dilute sulphuric acid: Hydrogen gas is evolved and the zinc metal gradually dissolves in the acid.
ii. Sodium hydroxide is added to Zinc chloride solution, first slowly then excess: A white precipitate is formed first which dissolves in excess sodium hydroxide solution to form a colorless solution.
iii. Ammonium hydroxide is added to Lead nitrate solution first slowly then an excess: A white precipitate is formed first which dissolves in excess ammonium hydroxide solution to form a colorless solution.
iv. Sodium hydroxide is added to Ferric chloride solution first slowly and then in excess: A brown precipitate is formed first which dissolves in excess sodium hydroxide solution to form a reddish-brown solution.
v. Addition of ammonium hydroxide in a solution of magnesium nitrates first slowly then excess: A white precipitate is formed first which dissolves in excess ammonium hydroxide solution to form a colorless solution.
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