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The energy of an electron in orbit of hydrogen atom is : (1) 13.6/n 4 x eV (2) 13.6/n 3 xeV (3) 13.6/n 2 xeV (4)13.6/nx eV Ans:
what is the mathematical form of pair of compounds have antifluorite structure ?
how H+ ions are formed
Antiseptics doesn''t harm living cells whereas disinfectants harm living cells.and disinfectants are used to sterilize instruments and utensils but cant be used on skin....and the
hot lime soda process
example of chemical reaction
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
Cast iron is iron or a ferrous alloy which has been heated until it liquefies, and is then poured into a mould to solidify. It is usually made from pig iron. The alloy constituents
An atom with atomic number 20 is most likely to combine chemically with the atom whose atomic number is: (1) 11 (2) 14 (3) 16 (4) 10 An
Q. Major functions of emulsifiers? The major functions of emulsifiers in food systems are as follows. The emulsifier: • modifies the intermolecular forces which stabilize
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