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Acids, Bases and Salts — Science STD 7 — Question

Gujarat BoardEnglish MediumSTD 7ScienceAcids, Bases and Salts1 Mark
MCQ
An alkali used for removing grease stains is:
  • A
    $HCl$
  • B
    $Al(OH​)_3$
  • ✓
    $NH​_4OH$
  • D
    $Na_2​SO_4$
✓

Answer

Correct option: C.
$NH​_4OH$
C.  $NH​_4OH$
Explanation:
Ammonium hydroxide is a moderately strong alkali cleaner to clean windows,ovens,greasy stains. It has very strong irritating fumes.

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