Dry cells are commonly used in clocks, torches, calculators etc. They are the
most familiar type of commercial cells.
(a) What acts as anode and cathode in dry cell?
(b) Which chemical compounds are filled between anode and cathode of this
cell?
(c) Why do dry cells not have a long life?
OR

(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.