1.

Complete and balance the following equations : (i) HgCl_(2)+KI to (ii) Al+Cr_(2)O_(3) to (iii) CuSO_(4)+H_(2)S to (iv) (NH_(4))_(2)Cr_(2)O_(7)overset(Delta)(to)

Answer»

SOLUTION :(i) `HgCl_(2)(aq)+2KI(aq) to HgI_(2)(aq)+2KCL(aq)`
(ii) `2Al(s)+Cr_(2)O_(3)(s)overset(Delta)(to)Al_(2)O_(3)(s)+2Cr(l)`
(iii) `CuCO_(4)(aq)+H_(2)S(g) to CuS(s)+H_(2)SO_(4)(aq)`
(iv) `(NH_(4))_(2)Cr_(2)O_(7)(s)overset(Delta)(to)N_(2)(g)+4H_(2)O(g)+Cr_(2)O_(3)(s)`


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