CBSE Class 10 Science 2017 · Paper 31/2/1 · Question 25
Which one of the following sets of materials can be used to prepare soap ?
- (a)Neem oil and calcium hydroxide
- (b)Castor oil and sodium hydroxide
- (c)Mineral oil and sodium hydroxide
- (d)Neem oil and magnesium hydroxide
Answer
(b) Castor oil and sodium hydroxide
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