The chemical formula of gypsum is CaSO₄·2H₂O, which means it is a compound of calcium sulfate with two molecules of water of crystallization.
The mineral gypsum is commonly used in the construction industry for making plaster, drywall, and other building materials.
It is widely mined and is used as a fertilizer and as the main constituent in many forms of plaster, blackboard or sidewalk chalk, and drywall.
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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?
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