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For preparing soap in the laboratory we require an oil and a base. Which of the following combinations of an oil and a base would be best suited for the preparation of soap?- Castor oil and calcium hydroxide
- Turpentine oil and sodium hydroxide
- Castor oil and sodium hydroxide
- Mustard oil and calcium hydroxide
Correct Answer: (c) Castor oil and sodium hydroxide
Explanation: Castor in soaps contributes to fluffy, stable lather, conditioning, moisturizing, quicker trace, softer soap.
Turpentine is for medicinal and mustard oil is used for cooking. Sodium hydroxide is a strong base soluble in water. However, calcium is not preferred as it forms scum.
Therefore, castor oil and sodium hydroxide are best suited for soap.
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