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What is mole?
WHAT IS USE OF ION PAIR REAGENTS? The chemical substances that pair each other, to produces complexes. These can use for stabilization of one of the molecule that is more active
what is the silver salt
The nitrogen atom has 7 protons and 7 electrons, the nitride ion (N 3 -) will have: (1) 7 protons and 10 electrons (2) 4 protons and 7 electrons (3) 4 protons and 10 e
Which one is not the correct relation in the following: (1) h= E/ v (2) E= mc 2 (3) Δ x × p = h/ 4 Π (d) γ
Energy of electron of hydrogen atom in second Bohr orbit is: (1)-5.44x10 -19 j (2)- 5.44x10 -19 kj (3)-5.44x10 -19 cal
Titration - Volumetric analysis The procedure of addition of the known solution from the burette to the measured volume of solution of the substance to be calculated until the
(a) Write the structural formula of 3-phenylprop-2-enal. (b) Write one chemical equation each to illustrate the following reactions: (i) Aldol condensation (ii) Cannizzaro
define alkanes and explain classification of alkanes.
The number of electrons in [ 40 19 k ] -1 is: (1) 19 (2) 20 (3)18 (4)40 Ans: 40
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