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Name the principal ore of tin or lead. Describe the different steps (along with equationsfor the reactions) involved in the extraction of the metal from the ore named. Name
Q. Show the properties of Aluminium Oxide ? Aluminium oxide, Al 2 0 3 is a highly ionic compound of aluminium. It is also known as alumina. As you have studied earlier, it occ
ORIGIN AND ABUNDANCE OF THE ELEMENTS The synthesis of elements needs nuclear reactions, of which the most important type is the fusion of two light nuclei to prepare one of
a) Write a balanced equation of the formation of dimethyl carbonate by the reaction of methanol with carbon dioxide. How can dimethyl carbonate form if phosgene is the reactant?
Which of the following statements is not correct for an electron that has the quantum numbers n=4 and m =2: (1) The electron may have the quantum number s= +1/2 (2) The e
A sample of caco3 and mgco3 weighing 192 g is ignite to constant weight of 10 g. calculate sample composition.
what is the symmetry of a star
I need short questions and mcq related to this topic
The maximum energy is present in any electron at: (1) Nucleus (2) Ground state (3) First excited state (4) Infinite distance from the nucleus Ans: Infinite dis
chemistry and mechanism of action
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