Litmus is a natural dye that is extracted from certain species of lichen, a symbiotic organism that consists of a fungus and an alga. It is commonly used as an acid-base indicator in chemistry. When dissolved in water, litmus changes color depending on the pH of the solution: it turns red under acidic conditions and blue under basic (alkaline) conditions. This makes it a useful tool for determining the acidity or alkalinity of substances.
What is the Ames test used for?
Given are the statements about primary and secondary batteries. Identify the correct statement(s).
(I) Mercury cell is suitable for low current devices like hearing aids, watches, etc.
(II) Leclanche cell is used commonly in wet laboratories and schools.
(III) Lead storage battery is commonly used in automobiles and inverters.
Which of the following kitchen chemicals is commonly used to preserve pickles?
The use of drugs for medical treatment is referred to as _____.
What is Karst topography primarily associated with?
Which sweetener, first used in 1879, has received FDA approval for use in fruit juice beverages?
What is the primary industrial process of producing phenol worldwide, and what is the intermediate used in this process?
Which of the following is NOT the use of baking soda in the kitchen?
