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The number of electrons in the valence shell of calcium is:
(1) 6
(2) 8
(3) 2
(4)4
Ans: 2
basic principle of differential thermal analysis
3d 10 4s0 electronic configuration exhibits by; (1) Zn ++ (2) Cu ++ (3) Cd ++ (4) Hg ++
uses of light waves in chemical areas
How many octahedral and tetrahedral voids are present in HCP? Ans) octa -no of atoms prsnt ,nd tetra -twice of it.
sir/maam is it animals have the same type of the blood with human beings?
Antipyretic: Antipyretic is a drug that is accountable for lowering the temperature of feverish object. The central nervous system, specifically the hypothalamus, takes an sig
how yield of ether is highest when the halide ion is displased from a primary rather than secondary or tertiary halide?
F of NH4Cl->NH3 +HCl when p(NH3)not =p(HCl) F of KClO3->KCl +O2 KClO3=solid &KCl=solid & other are in gas. PLEASE REPLY TODAY(NEED TO COMPLETE THE ASSIGNMENT)
Rutherford's α particle scattering experiment proved that atom has: (1) Electrons (2 )Neutron (3) Nucleus (4 )Orbitals Ans: Nucleus
what are the electron deficient molecule explain with examples
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