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Q. What are Hexahalides? Hexahalides: S, Se-and Te react with excess of fluorine to give the corresponding hexafluorides. Fluorine being the most electronegative oxidises the
Which compound is highest covalent: (1) LiCl (2) FiF (3) LiBr (4) LiI Ans: LiI
Edible colours - Chemicals in food Edible colours employed for food are mainly dyes. The make use of food dyes is specifically wide spread. They are utilized to colour everythi
To calculate the e.m.f of the cell when does the nelsons equation is use? Ans) The Nernst equation is useful to measure the e.m.f of the cell when the concentrations of solution
Types of addition reactions Addition reactions can be categorized into three categories on the basis of the nature of initiating species. (A) Electrophilic additions (B)
Why do zinc hydroxide, aluminium hydroxide and lead (II) hydroxide dissolve in excess aqueous sodium hydroxide?
Which type of compounds show high melting and boiling points: (1) Electrovalent compounds (2) Covalent compounds (3) Coordinate compounds (4) All the three types of co
what are the acid refractory and its application and examples?
why is carbon valency four
Chemicals in food Several chemicals are added to food for their preservation and improving their appeal. These involve flavorings, antioxidants, fortifiers, sweeteners, dyes, e
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