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Q73) Cobalt is present in ..[CPMT 2003]




SOLUTION


Answer: (d)


Q74) Which of the following will give four isomers? [ CBSE PMT 2000]




SOLUTION

[Co(en)2Cl2]Br show cis- trans- isomers and optical isomerism
Answer: (d)


Q75) A complex compound of cobalt has molecular formula containing five NH3 molecules, one nitro group and two chlorine atoms for one Co atom. one mole of this compound produces three mole ions in aqueous solution, two moles of AgCl get precipitate. the ionic formula of the compound is ..[ CBSE PMT 1998]



SOLUTION


Answer:(c)



Q76) The coordination and oxidation number of X in the compound respectively are [ X(SO4)(NH3)5]Cl will be [JIPMER 1997]



SOLUTION


Answer: (d)


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