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Question

An alkali used for removing grease stains is:
$H C l$
$A l (O H)_{3}$
$N H_{4} O H$
$N a_{2} S O_{4}$

A

N a_{2} S O_{4}

B

H C l

C

N H_{4} O H

D

A l (O H)_{3}

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Solution

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Ammonium hydroxide is a moderately strong alkali cleaner to clean windows,ovens,greasy stains. It has very strong irritating fumes.

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