Which of the following compounds is brown in colour?

F e_{2} O_{3} . x H_{2} O

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Z n (O H)_{2}

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[C u (N H_{3})_{4}] S O_{4}

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[A g (N H_{3})_{2}] C l

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Solution

The correct option is A $F e_{2} O_{3} . x H_{2} O$

$F e_{2} O_{3} . x H_{2} O$ is brown coloured substance and known as rust.

$Z n (O H)_{2}$ is white in colour.

$[C u (N H_{3})_{4}] S O_{4}$ is a blue coloured complex.

$[A g (N H_{3})_{2}] C l$ is white in colour.

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Similar questions

One of the following organic compounds cannot decolourise the red-brown colour of bromine water. This compound is :

(a) $C_{14} H_{28}$ (b) $C_{7} H_{12}$ (c) $C_{6} H_{14}$ (d) $C_{9} H_{16}$

S O_{3} + H B r \to A + B + C

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