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Till 20elememts write the no of electrons in outermost shell.if less than 4 then this is the valency otherwise subtract from 8
Q. What are the Functional Groups? Ans. A functional group is an atom or group of atoms responsible for most of the chemical properties of a compound. The large number of
Another way to show that water pressure increases with depth Search a tall tin can. Punch holes up the side of the can about 3 cm apart. Put a strip of adhesive or plastic tape
Mesh size of silica gel for prep tlc
It gives Meta Bromo Benzoic acid.
Q) Inside the sun four hydrogen nuclei combine to form a helium nucleus by which cycle? Ans) Proton-proton cycle.
lithium and beryllium markedly differ from other members of their respective groups
density of gas is 2.86 ltr.the gas may be-
What is Dielectric loss These losses occur because of electrons hopping from one lattice site to another in transition metal oxides.
how were anode rays discovered
Q. Evaluate the gold number of A? The coagulation of 100 mL of colloidal sol. is completely prevented by adding 0.25g of a protective colloid 'A' to it before adding 1 mL of Na
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