1
.
(Atomic no. of Co
=27) 1
ions
are not stable in aqueous solution. 1
(b)
Most of the transit metal ions exhibit paramagnetic
behavior. 1
.
(At.
no. of Co = 27) 2
Identify
the functional groups present in the molecule. 2
(b)
Grignard reagents are prepared strictly under anhydrous
condition? 1
used
during the reaction of alcohols with 
in the
conversion of an alcohol to the alkyl
bromide? 1
is
50% dissociated at 300K. Calculate the value of Van't Hoff factor for
.
3
3
(b)
Two strands of DNA are not identical but complementory. Explain?
(b)
Draw the structure of 
.
1
(c)
Fluorine always exhibit an oxidation state of ? 1 only in its
compound. 1
also
gives (B), (B) on heating with 
gives
(E) having molecular formulas
. (E)
does not give Tollen's test and does not reduce Fehling's solution. Identify
(A), (B), (C), (D) and (E). 5
solution
reacts with : 2
(i) Iron (
) ions
(ii) Oxalic
acid.
(b) Name
the oxometal amine of one of the transition metals in which the metal exhibits the
oxidation state equal to the group number. 1
(c)
Write the electronic configuration of 
ion and
calculate the magnetic moment on the basis of spin only formula. (Atomic no. of
=
58) 2
value
for benzene is 2.53 K kg 
. What
is the molecular formula of Sulphur? (Atomic mass of sulphur = 32 g )
5
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