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what is the colour of the residue for nickel in charcoal cavity test
which among the following species have the same no of electrons in its outermost as well as penultimate shell
what are noble gases
Explain why electrolysis of aqueous solution of NaCl gives H 2 at cathode and Cl 2 at anode. Write overall reaction
i am not able to understand difference between emphasising and reflexive pronoun
why f-block elements are called inner transition elements?
Silicon has 4 electrons in the outermost orbit. In forming the bonds: (1) It gains electrons (2) It loses electrons (3) It shares electrons (4) None of these Ans: I
If electron falls from n=3 to n= 2 , then emitted energy is: (1) 10.2ev (2) 12.09 ev (3) 1.9ev (4)0
consider the reaction: Mg(s) +2H _Mg(aq)+H2(g).Calculate the standard electrode potential.
lithium and beryllium markedly differ from other members of their respstive groups
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