Download App

Electro Chemistry — Chemistry STD 12 — Question

Tamilnadu BoardEnglish MediumSTD 12ChemistryElectro Chemistry1 Mark
MCQ
While charging lead storage battery
  • A
    $PbSO _4$ on cathode is reduced to Pb
  • B
    $PbSO _4$ on anode is oxidised to $PbO _2$
  • ✓
    $PbSO _4$ on anode is reduced to Pb
  • D
    $PbSO _4$ on cathode is oxidised to Pb
✓

Answer

Correct option: C.
$PbSO _4$ on anode is reduced to Pb
$PbSO _4$ on cathode is oxidised to Pb
Explanation:
Charging: anode: $PbSO _{4( s )}+2 e ^{-} \longrightarrow Pb _{( s )}+ SO _{4( aq )}^{-2}$
Cathode:$PbSO _{4( s )}+2 H _2 O _{( l )} \longrightarrow PbO _{2( s )}+ SO _{4( aq )}^{-2}+2 e ^{-}$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "Choose the most appropriate answer from the given alternatives and write the option code and the corresponding answer." from Electro Chemistry→Electro Chemistry — all question types→Chemistry STD 12 question papers→Tamilnadu Board STD 12 question papers→Tamilnadu Board question paper generator→

Similar questions

QUESTION One mole of an organic compound $( A )$ with the formula $C _3 H _8 O$ reacts completely with two moles of HI to form X and Y . When $Y$ is boiled with aqueous alkali it forms $Z$. $Z$ answers the iodoform test. The compound (A) is .................
→
Match the following :
List - IList - II
A. $NaCl$1. Molecular crystal
B. $SiO _2$2. Metallic crystal
C. $C _6 H _{12} O _6$3. Ionic crystal
D. Copper4. Covalent crystal
→
The value of A in Debye – Huckel and Onsagar equation is ……….
→
During dehydration of alcohols to alkenes by heating with Conc. $H _2 SO _4$, the initiation step is………..
→
Potassium has a bcc structure with nearest neighbor distance 4.52 A0. its atomic weight is 39. its density will be
→
The fraction of total volume occupied by the atoms in a simple cubic is
→
Which one of the following is not a condensation polymer?
→
Consider the following statements.
(i) Amorphous solids are isotropic like liquids
(ii) Amorphous solids are considered as pseudo solids
(iii) Amorphous solids have sharp melting points
Which of the above statemetns is / are correct?
→
The raw material is used in the manufacture of ieoprene?
→
Proteins are hydrolysed by enzymes into …………….
→