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Bohr's radius can have:
(1) Discrete values
(2) +ve values
(3) - ve values
(4) Fractional values
Ans: +ve values
Q. What do you understand by dissolved oxygen in water? How does it create trouble in boiler? Give chemical methods with suitable reactions to remove it from the water. Ans.
Solid CH 4 is: (1) Molecular solid (2) Ionic solid (3) Pseudo solid (4) Does not exist Ans: Molecular solid
We have seen that different metal/metal ion combinations have different values of electrode potentials. The various elements can be arranged in order of increasing or decreasing va
whAT IS SOLID STATE
synthesis, posted date 1/12/2013 7;26;41 pm\location ;austeralia
with suitable examples explain how a polar molecule could induce polarity to a nearby nonpolar molecule . Ans) Throughinduction,, the positive part of the polar molecule will a
Electronic configuration of Sc 21 is: (1) 1s 2 , 2s 2 , 2p 6 , 3s 2 , 3p 6 , 4s 2 , 3d 1 (2) 1s 2 , 2s 2 , 2p 6 , 3s 2 , 3p 6 , 4s 1 , 3d 2 (3)1
why is filtration in soil and water a slow process and explain the colour change in the filtrate
The mass of a photon with a wavelength equal to 1.54 x 10 -8 cm is: (1) 0.8268 x 10 -34 kg (2) 1.287 x10 -33 kg (3)1.4285x 10 -32 k
what is addition,substitution,rearrangement,elimination reactions?
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