Question

when electricity is passed through common salt solution Sodium Hydroxide is produced along the Liberation of two gases X and Y the gas X burn with pop sound whereas Y is used for disinfecting drinking water
(a) identify X and Y
(b) give the chemical equation for reaction stated above
(c) state the reaction of Y with slaked lime

Answer 1

X-H2

Y-Cl2

NaCl+H2O(electricity)------NaOH+H2+Cl2

Slaked lime:Ca(OH)2

Ca(OH)2+Cl2 -------- CaOCl2+ H2O

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Answer 2

(a) X is hydrogen
Y is chlorine .

(b) NaCl + H2O -----> NaOH + Cl2 + H2

(c) Ca (OH)2 + Cl2 ----> CaOCl2 + H2O.