1. Tardigrade
  2. Question
  3. Chemistry
  4. About aqueous CuCl 2 solution how many of the following statements are correct? (A) Dilute solution is blue due to presence of [ Cu ( H 2 O )4]2+ (B) Concentrated solution is green due to presence of [ CuCl 4]2- and [ Cu ( H 2 O )4]2+ (C) When HCl is added to CuCl 2 solution becomes yellow due to [ CuCl 4]2- (D) Aqueous solution of CuCl 2 is acidic due to hydrolysis

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Q. About aqueous $CuCl _{2}$ solution how many of the following statements are correct?
(A) Dilute solution is blue due to presence of $\left[ Cu \left( H _{2} O \right)_{4}\right]^{2+}$
(B) Concentrated solution is green due to presence of $\left[ CuCl _{4}\right]^{2-}$ and $\left[ Cu \left( H _{2} O \right)_{4}\right]^{2+}$
(C) When $HCl$ is added to $CuCl _{2}$ solution becomes yellow due to $\left[ CuCl _{4}\right]^{2-}$
(D) Aqueous solution of $CuCl _{2}$ is acidic due to hydrolysis

The d-and f-Block Elements

Solution:

(A), (B) and (D) are correct.