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  • The species present in the solution when  is dissolved in water are : Option: 1 <img alt="CO_2 ,

The species present in the solution when CO_2 is dissolved in water are : 

Option: 1

CO_2 , H_2 CO_3, HCO_{3}^{-} , CO_{3}^{2-}


Option: 2

H_2CO_3 , CO_3^{2-}


Option: 3

HCO_3 ^- , CO_3^{2-}


Option: 4

CO_2 , H_2CO_3


Answers (1)

best_answer

 When \mathrm{CO_2}  is dissolved in water then , \mathrm{H_2CO_3} is formed which dissociates in the manner as given below

\mathrm{H_2CO_3\rightleftharpoons H^+ + HCO_3^-}

\mathrm{HCO_3^- \rightleftharpoons H^+ + CO_3^{2-}}

All of these species will be present at equilibrium.

Therefore, the option number (1) is correct.

Posted by

Gaurav

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