Redox Reactions And Electrochemistry Question 275

Question: A depolarizer used in dry cell batteries is [NCERT 1981]

Options:

A) Ammonium chloride

B) Manganese dioxide

C) Potassium hydroxide

D) Sodium phosphate

Show Answer

Answer:

Correct Answer: B

Solution:

$ MnO_2 $ is used in dry batteries cell.