Consider the following pairs: Commonly used/consumed materials - Unwanted or controversial chemicals likely to be found in them: 1. Lipstick - Lead 2. Soft drinks - Brominated vegetable oils 3. Chinese fast food - Monosodium glutamate. Which of the pairs given above is/are correctly matched?

1. Lipstick – Lead: Lead has been reported as a contaminant in some lipsticks and has been a health concern. Verdict: Correct.

2. Soft drinks – Brominated vegetable oils: Brominated vegetable oil (BVO) has been used in some citrus-flavoured soft drinks as an emulsifier and has been controversial. Verdict: Correct.

3. Chinese fast food – Monosodium glutamate: MSG is commonly associated with Chinese-style fast food and has long been controversial in public discourse. Verdict: Correct.

Hence, all three pairs are correctly matched.