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Q33) Which of the following is square planar [ AtNo Ni =28]? [ BHU 1994]




SOLUTION


Answer: (a)


Q34) In the metal carbonyls of the general formula M(CO)x where M = metal; x=4, the metal is bonded to [ CBSE PMT 1995]




SOLUTION

In M(CO)4, M is bonded M-CΞO
Answer: (d)


Q35) the effective atomic number of Cr(atomic no. 24) in [Cr(NH3)6]Cl3 is [ BHU 1993]



SOLUTION

Effective atomic number
Number of electrons in Cr3+ = 24-3 = 21
number of electrons donated by ligands = 2×6 = 12
Thus EAN = 21+12 = 33
Answer:(c)



Q36) A solution of potassium ferrocyanide would contain ...ions [ KCET 1990]



SOLUTION

K4[Fe(CN)6] ionises to give 4+1= 5 ions
Answer: (d)


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