Sodium hydrogen carbonate is called:

Correct option is B

·        Sodium hydrogen carbonate (NaHCO3) or sodium bicarbonate: Sodium bicarbonate is commonly known as baking soda.

·        Sodium bicarbonate in baking soda quickly neutralizes stomach acid. Sodium bicarbonate is a white crystalline solid.

·        It is used in baking products like cakes, cookies, etc.

Incorrect options explanation:

o   Washing soda is a chemical compound with the formula Na2CO3, known as sodium carbonate, and it's a salt of carbonic acid.

o   Calcium sulfate dihydrate is its chemical name. The chemical formula of gypsum is CaSO4. 2H2O. Gypsum is a widely used mineral.

o   The chemical name of plaster of paris is Calcium sulphate hemihydrate. The chemical name of the plaster of Paris is calcium sulfate hemihydrate because half-molecule of water is attached with calcium sulphate.