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Which orbital is dumb-bell shaped:
(1) s -orbital
(2) p -orbital
(3) d -orbital
(4)f -orbital
Ans: p -orbital
A chemical change takes place when one or more substances change into new substances. A chemical change is as well known as a chemical reaction. The emergence of new substances
phenol is more acidic thyan eythanol
what is atom
The maximum energy is present in any electron at: (1) Nucleus (2) Ground state (3) First excited state (4) Infinite distance from the nucleus Ans: Infinite dis
how to construct SHE
The Basicity is 3 as there are 3 H atoms that can be displaced from compound.
The radius of first Bohr's orbit for hydrogen is 0.53 Å. The radius of third Bohr's orbit would be: (1) 0.79 Å (2) 1.59 Å (3) 3.18 Å (4)4.77 Å
Krypton ( 36 Kr) has the electronic configuration (18 Ar) 4s 2 , 3d 10 , 4p 6 . The 37 electron will go into which one of the following sub-levels: (1) 4f
A moving particle may have wave motion, if: (1) Its mass is very high (2) Its velocity is negligible (3) Its mass is negligible (4) Its mass is very high and velocity
what are the disadvantges of donnan membrane
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