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  4. How many of the following cations belong to group IV, with regards to qualitative inorganic analysis? Co2 +,Mg2 +,Ni2 +,Zn2 +,Sr2 +,Ca2 +,Mn2 +,Pb2 +,Al3 +

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Q. How many of the following cations belong to group IV, with regards to qualitative inorganic analysis?
$Co^{2 +},Mg^{2 +},Ni^{2 +},Zn^{2 +},Sr^{2 +},Ca^{2 +},Mn^{2 +},Pb^{2 +},Al^{3 +}$

NTA AbhyasNTA Abhyas 2022

Solution:

Among the givencations, group IV cations are $Co^{2 +},Ni^{2 +},Mn^{2 +}$ and $Zn^{2 +}$