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Highest covalent character is found in:
(a1 CaF2
(2) CaCl2
(3) CaBr2
(4) Cal2
Ans: Cal2
#question:- What are the theories of catalysis?
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Number of unpaired electrons in the ground state of beryllium atom is: (1) 2 (2) 1 (3) 0 (4) All the above Ans: 0
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factors affecting the acidity of the aromatic carboxilic acids
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