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perkin ring clousre reaction
Orthoboric acid H 3 BO 3 commonly known as boricacid and Meta boric acid HB0 3 , are two well-known and important oxoacids of boron. On a large scale, H 3 BO 3 is prepared by the
graph for the titration of barium chloride versus sodium sulphate
conclusion on caustic soda
Q. Explain scale formation and sludge formation in boilers. How are they formed? Ans Boilers are used for steam generation. When hard water is evaporated, progressively
how take chloroform test?
When an electron drops from a higher energy level to a low energy level, then: (1) Atomic number decreases (2) Energy is absorbed (3) Atomic number increases (4) Energ
Each element has a unique number of protons. This unique number is known as the element's atomic number . All atoms of a given element have the same atomic number. For example:
Question .. #
An air oven A large tin can is used as an air oven. A hole through the lid fitted with a cork holds a thermo- meter, and the saucer or dish rests on a wire gauze bridge placed
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