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Q. Study of Elements of group 16? We shall discuss Group 16 elements, viz., oxygen, sulphur, selenium, tellurium and polonium. These elements are called chalcogens or the ore f
what element is not grouped with others in a family? what is its usual atomic structure?
Preparation of ethane by lab method
WhT is pollymara
The nucleus of the element 21 E 45 contains: (1) 45 protons and 21 neutrons (2) 21 protons and 24 neutrons (3) 21 protons and 45 neutrons (4) 24 protons and 21 n
Calculate the Value for the Standard Molar Reaction Entropy? Derive an expression for the standard molar reaction entropy of a reaction that can be used to calculate its
examples?\
how scales are formed?
Why was covalent compounds are insoluble in water and ionic compounds soluble in water? Ans) When ionic bonds form, one atom becomes positively charged, while the other becomes ne
how alkenes oxidise with potassium
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