Which of the following substances is NOT used as a food preservative?

To prevent the oxidation and rancidity of potato chips during storage, manufacturers flush the sealed bags with which gas?

Early matches ignited when struck on a rough surface primarily due to the friction of which substance?

Among the following artificial sweeteners, which one has the highest sweetness value in comparison to cane sugar?

Antiseptics differ fundamentally from disinfectants because antiseptics are:

Which of the following is commonly used as an artificial sweetening agent?

Match List I (Chemical) with List II (Use) and choose the correct answer using the code given below: List I (Chemical) A. Chloroform B. Carbon black C. Formaldehyde D. Methanol List II (Use) i. Preservative for biological specimens ii. Antifreeze for automobiles iii. As an anaesthesia iv. Black pigment in shoe polishes

Which of the following is an example of a vat dye?

Which chemical compound, with the chemical formula H2O2, is widely used as a mild household antiseptic on the skin to prevent infection of minor cuts and burns?