KVPY SA Exam 05-Nov-2017 Question Paper

Question : 43 of 80

Marks: +1, -0

_2

is passed through lime water. Initially the solution turns milky and then becomes clear upon continued boubbling of CO

_2

. The clear solution is due to the formation of

Solution:

Ca(OH)_2 + CO_2\ { ––––▸} CaCO_3 + H_2O

CaCO_3 + H_2O{\ ––––––––▸}↖{CO_2} {Ca(HCO_3)_2}↙{\Clear \solution}

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