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Q. What are Trioxides? The selenium and tellurium trioxides are not stable, SO 2 , is the only important trioxide in the group. Its preparation has been described above. Sul
discuss condensation method to prepare lyphobic sols
The reluctances of ns electrons in the participation of bond formation is known as inert pair effect
CH 3 COOH ( ethanoic acid) + NH 3 ------------ > CH 3 COONH 4 + (HEAT) ---------- > CH 3 CONH 2 (methyleamine) + H 2 O
decreasing order of +M.E. group
Covalent compounds are generally ...... in water: (1) Soluble (2) Insoluble (3) Dissociated (4) Hydrolysed Ans:
Q.give characterstics of matter?
define alkanes and explain classification of alkanes.
why YbS and YbI2 are semiconducting solids but LaS and LaI2 show metallic character..
Q. How to evaluate mass number? An isotope of an element is recognized by its mass number which is the sum of the number of protons and neutrons in the atom's nucleus. Mas
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