Question

Sodium carbonate is commonly known as:

A

baking soda

B

washing soda

C

chalk

D

plaster of paris

Medium

Solution

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Correct option is
B

washing soda

Sodium carbonate or washing soda has a hydrous form and an anhydrous form. Hydrous form is when sodium carbonate has some water molecules attached to it (formula is ). Anhydrous sodium carbonate does not have water molecules attached to it ( only).

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