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?

All three pairs are correctly matched because Lead is a frequent heavy metal contaminant in lipstick pigments, Brominated vegetable oils (BVO) are used as emulsifiers in citrus-flavored soft drinks, and Monosodium glutamate (MSG) is a standard flavor enhancer in Chinese fast food. Option (b) is the most tempting wrong choice for candidates who may be unaware that Lead, while not an intentional ingredient, is a widely documented impurity in many cosmetic products. The core concept tested is the identification of chemical additives and environmental contaminants found in everyday consumer goods.