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[" 18.When "20ml" of "0.1MCl" is mixed w...

[" 18.When "20ml" of "0.1MCl" is mixed with "20ml],[" of "0.1MNaOH" ,the rise in temperature is "T" ,"],[" When the experiment is repeated using "20ml],[" of "0.2MHCl" and "0.2MNaOH" solutions,the "],[" rise in temperature is "T_(7)" .Then "],[[" 1) "T_(1)=T_(2)," 2) "T_(1)=2T_(2)],[" 3) "T_(1)=4T_(2)," 4) "2T_(1)=T_(2)]]

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