On adding a drop of barium chloride solution to an aqueous solution of sodium sulphite, a white precipitate is obtained.

What is the balanced chemical equation of the reaction involved?

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

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N a_{2} S O_{3} (a q) + B a C l_{2} + H_{2} O (a q) \to B a S O_{4} (s) + 2 N a C l (a q) + H_{2}

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N a_{2} S O_{3} (a q) + B a C l_{2} (a q) \to B a S O_{3} (s) + 2 N a C l (a q)

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None of these

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Solution

The correct option is A $N a_{2} S O_{3} (a q) + B a C l_{2} (a q) \to B a S O_{3} (s) + 2 N a C l (a q)$
Barium chloride ( $B a C l_{2}$ ) reacts with sodium sulphite ( $N a_{2} S O_{3}$ ) to form barium sulphite ( $B a S O_{3}$ ) and sodium chloride (NaCl).

The chemical equation for this reaction can be written as :
$B a C l_{2} (a q) + N a_{2} S O_{3} (a q) \to B a S O_{3} (s) + 2 N a C l (a q)$
(white ppt)

Hence the correct option is C.

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Similar questions

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

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

Question 43

On adding a drop of barium chloride solution to an aqueous solution of sodium sulphite, white precipitate is obtained.

(a) Write a balanced chemical equation of the reaction involved.

(b) What other name can be given to this precipitation reaction?

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