Which of the following cations are present in III group?

A l^{3 +}

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F e^{3 +}

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C r^{3 +}

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C u^{2 +}

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Solution

The correct options are
A $F e^{3 +}$
B $C r^{3 +}$
C $A l^{3 +}$
$C u^{2 +}$ belongs to $I I$ group. But $A l^{3 +}$ , $F e^{3 +}$ , and $C r^{3 +}$ are present in $I I I$ group.

So, the correct options are $A$ , $B$ , and $C$

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Similar questions

A l^{3 +}

F e^{3 +}

C r^{3 +}

N H_{4} S C N

S n^{2 +}, H g_{2}^{2 +}, P b^{2 +}, Z n^{2 +}, C u^{2 +}, C r^{3 +}, A s^{3 +}, M g^{2 +}, S b^{3 +}

F e^{3 +}

C r^{3 +}

F e^{3 +}

Z n^{2 +}

C u^{2 +}

F e^{3 +}

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