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Borax bead test : The transparent glassy bead while heated along with inorganic salt and the colour produced gives some idea of cation present in it. Table:
Rutherford's α particle scattering experiment proved that atom has: (1) Electrons (2 )Neutron (3) Nucleus (4 )Orbitals Ans: Nucleus
ionic equation for potassium dichromate and potassium manganate
Reaction of ammonia with diborane at 475K gives a compound B3N3H6 known as borazine or borazole: Borazine is best prepared by reducing B-trichloroborazme with sodium borohy
In any atom which sub-shell will have the highest energy in the following : (1) 3p (2) 3d (3) 4s (4) 3s Ans: 3d
Carbon has maximum catenation ability. The self-linkage of the atoms of elements to make long chains is known as catenation.
how much time will it require to spend 0.1 mole of rupees when the average rate of expenditure is 1 billion rupees per second?
An ion has 18 electrons in the outermost shell, it is: (1) Cu + (2) Th 4+ (3) Cs + (4) K + Ans
No. of valence orbitals- No of Hybrid orbitals.Apply the formula for no. of hybrid orbitals.If it exceeds 4 then the answer is 0.
Q. Illustrate Crystal Field Theory with s-orbitals? Let us start with s-orbitals which are spherically symmetrical. Any effect due to mutual repulsions between the s-electrons
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