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Q.

Write balanced chemical equation:


Sodium thiosulphate is reacted with dilute hydrochloric acid.


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a

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b

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c

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d

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answer is C.

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Detailed Solution

Concept- The law of conservation of mass can be applied to balance the reaction. To balance the amount of atoms on the left and right sides of the reaction, the hit-and-miss approach is applied. In a chemical reaction, the mass of reactants and products must match.
A balanced chemical equation contains an equal number of atoms on either side.
Using the hit and trial method, the balanced chemical equation is as follows;
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Number of atom

Number of atom

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Hence, the correct answer is option (3).
 
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