1
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
Which of the following processes does not involve oxidation of iron?
A
Formation of Fe(CO)5 from Fe.
B
Liberation of H2 from steam by iron at high temperature.
C
Rusting of iron sheets.
D
Decolourisation of blue CuSO4 solution by iron.
2
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Bithional is generally added to the soaps as an additive to function as a/n
A
buffering agent
B
antiseptic
C
softner
D
dryer
3
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
4
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.
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