D&F BLOCK



  • photo_2020-06-07_20-37-51.jpg

    Q6-ANS-A

    BOTH STATEMENT CORRECT AND CORRECT REASON

    BUT HOW DOES REASON EXPLAIN STATEMENT?



  • @ABCDMA-ABCDMA Copper ion solutions. Solution of copper II ions (Cu2-) in copper sulphate . When concentrated hydrochloric acid (HCl) is added, tetrachlorocuprate II complex ions ((CuCl4)2-) are formed. These ions are yellow in colour, which with the blue colour of copper ions results in a vivid green coloured solution .
    [Cu(H2O)4]2+ is pale blue in colour so the resulting solution is green in colour ....hence the reason is the correct explanation of assertion


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