Question

read the list below:

1. sugar
2. pepper
3. lemon juice
4. carbon dioxide
5. salt
6. vegetable oil

which materials from the list will not dissolve in water?
□ 3 and 5 only
□ 3, 4, and 6 only
□ 2 and 6 only
□ 1, 2, and 5 only

Explanation:

Step1: Identify soluble substances

Sugar, lemon juice, carbon dioxide, salt dissolve in water.

Step2: Identify insoluble substances

Pepper, vegetable oil do not dissolve in water.

Step3: Match to option

The insoluble items are 2 and 6.

Answer:

2 and 6 only