Q.

Write an equation to show the reaction between Plaster of Paris and water?


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a

Question Image

b

Question Image

c

Question Image

d

None of these 

answer is A.

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Detailed Solution

Concept- If the reactants and products of a chemical reaction have the same number of atoms and total charge for each component of the reaction, the equation for the reaction is said to be balanced. The mass and charge balances on both sides of the reaction are therefore equivalent.
A balanced chemical reaction is one in which the quantity of reactant atoms and product atoms participating in the reaction are consistently equal.
The formula of gypsum is Question Image and plaster of Paris is calcium sulphate hemihydrate i.e  Question ImageThe chemical reaction is as follows;
Question ImageHence, the correct answer is (1).
 
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