4. Write the chemical formula of the following compounds:
i)Table salt ii)slaked lime iii)Bleaching powder iv) plaster of paris v) Chalk vi) Limestone vii) Carbolic acid viii) Baking soda ix)Blue vitriol x )Philosophers wool.

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Solution

$T a b l e s a l t - N a C l (s o d i u m c h l o r i d e) S l a k e d l i m e - C a (O H)_{2} (C a l c i u m h y d r o x i d e) B l e a c h i n g p o w d e r - C a O C l_{2} (c a l c i u m c h l o r o h y p o c h l o r i t e) P l a s t e r o f P a r i s - C a S O_{4} . \frac{1}{2} H_{2} O (c a l c i u m s u l p h a t e . h e m i h y d r a t e) C h a l k - C a C O_{3} (C a l c i u m c a r b o n a t e) L i m e s t o n e - C a C O_{3} (C a l c i u m c a r b o n a t e) C a r b o l i c a c i d - C_{6} H_{5} O H) (p h e n o l) B a k i n g s o d a - N a H C O_{3} (s o d i u m b i c a r b o n a t e) B l u e v i t r i o l - C u S O_{4} . 5 H_{2} O (c o p p e r s u l p h a t e p e n t a h y d r a t e) P h i l o s o p h e r s w o o l - Z n O (z i n c o x i d e)$

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Similar questions

A lot of dry powder of one of the following chemicals can be released over a fire to extinguish it. This chemical is :

(a) plaster of Paris

(b) baking soda

(d) bitumen

Column (I)	Column (II)
(1) Bleaching powder	(a) Sodium bicarbonate
(2) Baking soda	(b) Sodium carbonate
(3) Washing soda	(c) Calcium oxychloride
(4) Plaster of Paris	(d) Calcium sulphate hemihydrate

(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.

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