In dry Leclanche cell, manganese (IV) oxide acts as
a reducing agent
binding agent
catalyst
depolarizer
Correct answer is D
No explanation has been provided for this answer.
decrease in rate of the reaction of the system
decrease in temperature of the system
increase in temperature of SO3
increase in concentration of SO2
Correct answer is C
No explanation has been provided for this answer.
The high solubility of ethanol in water is due to its
low boiling point
low freezing point
covalent nature
hydrogen bonding
Correct answer is D
No explanation has been provided for this answer.
11.42 mol dm-3
8.80 mol dm-3
1. 14 mol dm-3
0.88 mol dm-3
Correct answer is C
No explanation has been provided for this answer.
40 cm3
32cm3
24cm3
16cm3
Correct answer is D
No explanation has been provided for this answer.