Q82 / 270 · NDA 2019 (Phase 2) · General Ability

A sample of 'soft soap' contains

A
Caesium
Correct answer
B
Potassium
C
Calcium
D
Magnesium

Solution

Soft soap is made using potassium hydroxide $(\mathrm{KOH})$ rather than sodium hydroxide. In addition to being softer, this type of soap has a lower melting point.

Hence, the correct answer is option: 'B'.

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