Multiple choice

Which of the following is used in beauty parlours for hair setting?

  1. Phosphorus

  2. Sulphur

  3. Chlorine

  4. Silicon
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Sulphur compounds have been traditionally used in hair setting treatments because they can help break and reform disulfide bonds in hair proteins, allowing for permanent styling. The other options are incorrect - phosphorus is a fertilizer element, chlorine is a disinfectant, and silicon is used in electronics and cosmetics as a different type of treatment.

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