Complete and balance the following compound $K_{2} C r_{2} O_{7} + H C l \to K C l +$ $+$ _ $+ H_{2} O$ .

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Solution

$K_{2} C r_{2} O_{7}$ is strong oxidising agent in acidic medium.It oxidises $C l^{-}$ to $C l_{2}$ and itself reduced to $C r^{+ 3}$ .
$K_{2} {C r}_{2} O_{7} + 14 H C l \to 2 K C l + 2 C r {C l}_{3} + {3 C l}_{2} + {7 H}_{2} O$

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Similar questions

K_{2} C r_{2} O_{7} + H C l \to K C l + C r C l_{3} + H_{2} O + C l_{2}

_{2}

K_{2} C r_{2} O_{7} + H C l

\to K C l + C r C l_{3} + H_{2} O + C l_{2}

. . . K_{2} C r_{2} O_{7} + . . . H C l \to . . . K C l + . . . C r C l_{3} + . . . H_{2} O + . . . C l_{2}

K_{2} C O_{3} + H C l \to

Complete and balance the following reactions.

(a) $N a + H_{2} O \to$ _________ + _________

(b) $C a + H_{2} O \to$ __________+_________

(d) $Z n + H_{2} O \to$ ___________+_________

(e) $F e + H_{2} O \to$ ____________+_________

(f) $Z n + H C l \to$ _____________+__________

(g) $A l + H_{2} S O_{4} \to$ __________+_________

(h) $F e + H C l \to$ ___________+____________

(i) $Z n + N a O H \to$ __________+____________

(j) $A l + K O H + H_{2} O$ _________+____________

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