Question

Which of the following is not a grease stain ?

• A. Butter
• B. Oil
• C. Vegetable curry
• D. Colour

Hint:

To identify a grease stain, ask yourself: "Is this substance fatty or oily?" If yes, it's a grease stain. Dyes and pigments are distinct from fats.

Answer 1

The Correct Option is D

Step 1: Understanding the Concept:
A grease stain is a mark left by fatty or oily substances. The question asks to identify the option that does not cause a grease stain.
Step 2: Detailed Explanation:
(A) Butter: Butter is a dairy product made from fat and protein components of milk. It is primarily fat, so it causes a grease stain.
(B) Oil: Cooking oil is pure fat and is a classic example of a substance that causes grease stains.
(C) Vegetable curry: Most curries are cooked using oil or ghee (clarified butter) as a base. Therefore, a curry stain is typically a combination stain that includes grease.
(D) Colour: Colour, in this context, refers to a dye or pigment (like from ink, paint, or some fruits). These stains are chemically different from grease stains and require different removal methods. They are not based on fat or oil.
Step 3: Final Answer:
Butter, oil, and vegetable curry all contain grease. A colour stain is pigment-based, not grease-based.