Give a reason for each of the following.
(a) The purple colour of KMnO4 disappears in the presence of acidified
solution of oxalic acid.
(b) Some transition metals and their compounds get attracted towards the
magnetic field.
(c) 2+ 2+
Why are Mn compounds more stable than Fe towards oxidation to the
+3 state? (atomic no. of Mn = 25 and Fe = 26)

(A) Fill in the blanks by choosing the appropriate word(s) from those given in the [4×1] brackets: [four, three, remains same, propane, ns1-2, increases, six, propan-2-ol, (n-1)d1-10, two, decreases, Clemmensen’s, Wolff-Kishner]
The molar conductance of a solution _________ on dilution but the
specific conductance of a solution _________ on dilution.

3] Identify the compounds [A], [B] and [C] in the following reactions. 6[H] HNO2 + HCl C6H5NH2
CH3CH2NH2 [A] [B] [C]
(2) P/Cl2 (2) H2O/H+ (2) Br2/KOH

What are reducing sugars? Give an example.
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3] Identify the compounds [A], [B] and [C] in the following reactions. 6[H] HNO2 + HCl C6H5NH2
C6H5NO2 [A] [B] [C]
Sn/HCl 273K-278K
(1) HNO2 (1) KCN (1) NH3/heat

(A) Fill in the blanks by choosing the appropriate word(s) from those given in the [4×1] brackets: [four, three, remains same, propane, ns1-2, increases, six, propan-2-ol, (n-1)d1-10, two, decreases, Clemmensen’s, Wolff-Kishner]
In the complex ion [CoCl(en)2ONO]+, the coordination number and
the oxidation number of the central metal ion are ______ and
________.

(A) Fill in the blanks by choosing the appropriate word(s) from those given in the [4×1] brackets: [four, three, remains same, propane, ns1-2, increases, six, propan-2-ol, (n-1)d1-10, two, decreases, Clemmensen’s, Wolff-Kishner]
Propanone on reaction with zinc amalgam in the presence of
concentrated HCl gives ______ and the reaction is called _______
reduction.