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Potassium Dichromate

When chromite...

Question

When chromite ore is fused with NaOH in the presence of air, the product formed is:

N a_{2} C r_{2} O_{7}

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C r_{2} O_{3}

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N a_{2} C r O_{4}

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K_{2} C r_{2} O_{7}

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Solution

The correct option is C $N a_{2} C r O_{4}$
$4 F e C r_{2} O_{4} + 16 N a O H + 7 O_{2} \to 8 N a_{2} C r O_{4} + 2 F e_{2} O_{3} + 8 H_{2} O$

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Similar questions

F e C r_{2} O_{4}

N a_{2} C r O_{4}

N a_{2} C r_{2} O_{7}

F e C r_{2} O_{4} + N a O H + a i r ⟶ (A) + F e_{2} O_{3}

(A) + (B) ⟶ N a_{2} C r_{2} O_{7}

N a_{2} C r_{2} O_{7} + X △ ⟶ C r_{2} O_{3}

C r_{2} O_{3} + Y △ ⟶ C r

M n O_{2}

K O H

M n O_{2}

F e {C r}_{2} O_{4}

N a O H

K C l

8 M n O_{4}^{-} + 3 S_{2} O_{3}^{2 -} + H_{2} O \to

{C r}_{2} O_{7}^{2 -} + 3 {S n}^{2 +} + 14 H^{+} \to

When boron is fused with NaOH, products formed are

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