Multiple choice general knowledge science & technology

_______ hydroxide is also known as 'Caustic Potash'.

  1. Calcium

  2. Magnesium

  3. Potassium

  4. Sodium

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Potassium hydroxide (KOH) is commonly known as 'Caustic Potash', just as sodium hydroxide (NaOH) is called 'Caustic Soda'. Both are strong alkalis used in various industrial applications. Calcium hydroxide is slaked lime, magnesium hydroxide is milk of magnesia.