What do you observe when

(a) dilute sulphuric acid is added to granulated zinc ?

(b) a few pieces of iron are dropped in a blute solution of sodium chloride ?

(c) silver nitrate is added to a solution to a of sodium chloride ?

(d) ferrous sulphate solution is added to an aqueous solution of sodium hydroxide.

(e) solid lead nitrate is heated ?

(f) when dilute sulphuric acid is added to barium chloride solution ?

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Solution

(a) When Zinc reacts with dilute sulphuric acid, hydrogen gas is evolved with an effervesence.
$Z n + d i l . H_{2} S O_{4} \to Z n S O_{4} + H_{2}$ .
(b) When a few pieces of iron are dropped into a blue coloured copper sulphate solution, the blue
colour of the solution fades and eventually turns into green.(c) When a solution of silver nitrate is added to a solution of sodium chloride, white insoluble ppt. of
silver chloride is formed.
$A g N O_{3} (a q) + N a C l (a q) \to A g C l (p p t) + N a N O_{3} (a q)$
(d) When ferrous sulphate solution is added to sodium hydroxide solution, a dirty green ppt. of ferrous
hydroxide is formed.
$F e S O_{4} (a q) + 2 N a O H (a q) \to F e (O H)_{2} ↓ + N a_{2} S O_{4} (a q)$
(e) When solid lead nitrate is heated, it decomposes to produce light yellow solid lead monoxide,
reddish brown nitrogen dioxide gas and colourless oxygen gas.

$2 P b (N O_{3})_{2} \to 2 P b O + 4 N O_{2} + O_{2}$
(f) When few drops of dilute sulphuric acid is added to barium chloride solution, a white precipitate of barium sulphate is formed.

$B a C l_{2} + d i l . H_{2} S O_{4} \to B a S O_{4} ↓ + 2 H C l$ .

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Similar questions

What do you observe when barium chloride solution is added to dilute sulphuric acid?

What do you observe when ammonia hydroxide is added to the aqueous solution of :

(a) $F e S O_{4}$ , (b) Iron (III) chloride,

What do you observe when

(a) Iron nail is kept in copper sulphate solution for sometime.

(b) Phenolphthalein is added to sodium hydroxidee solution.

(d) Lead nitrate is heated.

(e) magnesium ribbon is burnt in oxygen.

(f)ammonia is brought in contact of hydrogen chloride gas.

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