1.

Assertion : S_(2)O_(7)^(2-) & Cr_(2)O_(7)^(2-)both exist. Reason : Both have same valence electrons

Answer»

If both assertion and reason are TRUE and reason is the CORRECT EXPLANATION of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.

Solution :`O^(-)-overset(O)overset(||)underset(O)underset(||)S-O-overset(O)overset(||)underset(O)underset(||)S-O^(-)" & "O^(-)-overset(O)overset(||)underset(O)underset(||)"Cr"-O-overset(O)overset(||)underset(O)underset(||)Cr-O^(-)`
Both having same STRUCTURE and same valance electrons


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