. To remove temporary hardness of water by Clark method the substance used is -

(1) Lime
(2) Washing Soda ..
(3). Zeolite
(4) Caustic Soda
 
 
 
 
 

Dear Student,

@ Akashdeep,

Good answer! 

Lime ( calcium hydroxide) is used in Clark's method to remove temporary hardness of water. In Clark’s method a calculated amount of calcium hydroxide Ca (OH)2 is added to the hard water. Due to reaction, insoluble carbonates are obtained which are separated by filtration.

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 (1) lime is the right ans..

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hope it helps........

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 vote me if u like.........

  • -1

 the correct ans is lime . I thought that u are giving NTSE

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