Use Faraday’s laws: Weight deposited = \(\frac{E I t \cdot M}{n F}\).
Here, \(E = 3\) A, \(t = 3600\) s, \(M = 106.4\) g/mol, \(F = 96500\) C/mol, and deposited mass = 2.977 g.
Solving gives \(n = 4\).
What type of battery is the lead storage battery? Write the anode and the cathode reactions and the overall reaction occurring in a lead storage battery when current is drawn from it.
Match the pollination types in List-I with their correct mechanisms in List-II:
List-I (Pollination Type) | List-II (Mechanism) |
---|---|
A) Xenogamy | I) Genetically different type of pollen grains |
B) Ophiophily | II) Pollination by snakes |
C) Chasmogamous | III) Exposed anthers and stigmas |
D) Cleistogamous | IV) Flowers do not open |