Plaster of Paris is :

C a S O_{4}

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C a S O_{4} . 7 H_{2} O

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2 C a S O_{4} . H_{2} O

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c a S O_{4} . 2 H_{2} O

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Solution

The correct option is C $2 C a S O_{4} . H_{2} O$
$2 C a S O_{4} . H_{2} O$
$C a S O_{4} . 1 / 2 H_{2} O$
that is called plaster of paris

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Similar questions

Consider the following substances :

$N a C l, C a (O H)_{2}, N a H C O_{3}, N H_{3}, N a_{2} C O_{3}, H_{2} O, C l_{2} C O_{2}, C a S O_{4} .2 H_{2} O, 2 C a S O_{4} . H_{2} O, C a O C l_{2}$

(a) Which two substances combine to form bleaching powder :

(b) Which four substances are utilised in the production of washing soda ?

(d) Which compound is a part of baking powder ?

(e) Which compound is used as an antacid ?

(a) What is plaster of Paris? Write the chemical formula of plaster of Paris.

(b) How is plaster of Paris prepared? Write the chemical equation of the reaction involved.

(d) State two important uses of plaster of Paris.

Q. Plaster of Paris is prepared by heating one of the following to a temperature of 100°C. This is:
(a) CaSO₃.2H₂O
(b) CaCl₂.2H₂O
(c) CaCO₃.2H₂O
(d) CaSO₄.2H₂O

Q. Plaster of Paris is known as calcium sulphate hemihydrate because two formula units of

C a S O_{4}

share one molecule of

H_{2} O

Q. Why does plaster of Paris have 1/2 molecule of water? Why does 2 CaSO4 molecules share one molecule of water?

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Plaster of Paris is :

The correct option is C 2CaSO4.H2O2CaSO4.H2OCaSO4.1/2H2Othat is called plaster of paris

The correct option is C $2 C a S O_{4} . H_{2} O$
$2 C a S O_{4} . H_{2} O$
$C a S O_{4} . 1 / 2 H_{2} O$
that is called plaster of paris