The dand fblock elements - Result Question 33

####33. Which one of the following ionic species will impart colour to an aqueous solution? [1998]

(a) Ti4+

(b) Cu+

(c) Zn2+

(d) Cr3+

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Solution:

  1. (d) We know that chromium (III) salts dissolve in water to give violet solution. The violet colour is due to the hydrated chromium (III) in [Cr(H2O)6]3+.


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