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The positive charge of an atom is:
(1) Spread all over the atom
(2) Distributed around the nucleus
(3)Concentrated at the nucleus
(4) All of these
Ans: Concentrated at the nucleus
Q. Explain about Neutral and Amphoteric oxides? Neutral oxides have neither acidic nor basic properties and when dissolved in water, they give neutral solutions, e.g., CO, N
A covalent bond is likely to be formed between two elements which: (1) Have similar electronegativities (2) Have low ionization energies (3) Have low melting points (4
In the chemical reaction, Al(s) + CuCl2(aq) --> Cu(s) + AlCl3(aq), why did the Copper turn green after being left for a day?
If the atomic weight of an element is 23 times that of the lightest element and it has 11 protons, then it contains : (1)11 protons, 23 neutrons, 11 electrons (2)11 protons,
Borazole is very stable because it is aromatic; each nitrogen contributes two p electrons and each boron contributes zero electrons, for a total of six p electrons in the aromatic
Vapour phase cracking - Hydrocarbon In this method, gas oil or kerosene oil is vaporized in vapour phase. The temperature is reserved 600 - 800 o C and the pressure is approxim
scale and sludge formation
formation of scales
Copper=54.1%, oxygen=20.1% and the balance sulfur. Could this also be the molecular formula? What other data is needed?
why equilibrium state attainable from either way?
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