1
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
Cobalt (III) chloride forms several octahedral complexes with ammonia. Which of the following will not give test for chloride ions with silver nitrate at 25oC?
A
CoCl3 $$ \cdot $$ 5NH3
B
CoCl3 $$ \cdot $$ 6NH3
C
CoCl3 $$ \cdot $$ 3NH3
D
CoCl3 $$ \cdot $$ 4NH3
2
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
Which of these statements about [Co(CN)6]3$$-$$ is true?
A
[Co(CN)6]3$$-$$ has four unpaired electrons and will be in a high-spin configuration.
B
[Co(CN)6]3$$-$$ has no unpaired electrons and will be in a high-spin configuration.
C
[Co(CN)6]3$$-$$ has no unpaired electrons and will be in a low-spin configuration.
D
[Co(CN)6]3$$-$$ has four unpaired electrons and will be in a low-spin configuration.
3
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Among the following complexes the one which shows zero crystal field stabilization energy (CFSE) is
A
[Mn(H2O)6]3+
B
[Fe(H2O)6]3+
C
[Co(H2O)6]2+
D
[Co(H2O)6]3+
4
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Which of the following complexes is used to be as an anticancer agent?
A
mer-[Co(NH3)3Cl3]
B
cis-PtCl2(NH3)2]
C
cis-K2[PtCl2Br2
D
Na2CoCl4
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