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Q.

Which of the following salt is known as washing soda?

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a

${Na}_{2} {CO}_{3}$

b

${Na}_{2} {CO}_{3} \cdot H_{2} O$

c

${Na}_{2} {CO}_{3} \cdot 10 H_{2} O$

d

${Na}_{2} {CO}_{3} \cdot 5 H_{2} O$

answer is A.

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Detailed Solution

Washing soda is chemically known as sodium carbonate

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