$B a C l_{2} (a q) + N a_{2} S O_{4} (a q) \to B a S O_{4} (p p t) + 2 N a C l (a q)$

What is the colour of precipitate formed?

White

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Black

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Yellow

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Blue

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Solution

The correct option is A
White

A chemical reaction in which two compounds in their aqueous state react to form an insoluble solid(a precipitate) as one of the products is known as precipitation reaction.

When barium chloride solution reacts with sodium sulphate solution, a white precipitate of barium sulphate is formed.

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{BaCl}_{2} (aq) + {Na}_{2} {SO}_{4} (aq) \to {BaSO}_{4} (s) + 2 NaCl (aq)

Change	Characteristics
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$2 . Fe (s) + {CuSO}_{4} (aq) \to {FeSO}_{4} (aq) + Cu (s)$	B.Evolution of gas
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$B a C l_{2} (a q) + N a_{2} S O_{4} (a q) \to B a S O_{4} (p p t) + 2 N a C l (a q)$

What is the colour of precipitate formed?

2 F e C l_{3} (a q) + 3 N H_{4} O H (a q) \to

$C u S O_{4} (a q) + H_{2} S (g) \to C u S (p p t) + H_{2} S O_{4} (a q)$

What is the colour of precipitate formed?

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