Question

Nio2 at the anode of a nickel-cadmium battery is reduced to what? select the correct answer below: ni2(oh) ni(oh); 2ni(oh); ni (oh) 2

Answer 1

In a Nickel-Cadmium (NiCad) battery, NiO2 at the anode is reduced to Ni(OH)2 during the discharge process.NiCad batteries are rechargeable, and the products of the discharge reactions are solids that adhere to the electrodes, allowing the battery to be recharged.

Step-by-step explanation:

The student is asking about the reduction reaction that occurs at the anode of a Nickel-Cadmium (NiCad) battery during discharge. During this process, nickel dioxide (NiO2) is reduced. According to the overall chemical reaction provided:

Cd(s) + 2NiO(OH) (s) + 2H₂O(l) → Cd(OH)2(s) + 2Ni(OH)2(s)

NiO2 at the anode is reduced to Ni(OH)2. Here is the step-by-step explanation of the reaction:

1. NiO(OH) undergoes a reduction reaction where it gains electrons.
2. Through this process, it is converted to Ni(OH)2, the reduced form of nickel.
3. This reduction reaction plays a crucial role in the battery's ability to store and deliver electrical energy.

Answer 2

Nio2 at the anode of a nickel-cadmium battery is reduced to from 2Ni(OH).

The correct option is 3.

Step-by-step explanation:

At the anode of a nickel-cadmium battery, NiO2 undergoes reduction to form 2Ni(OH). This process involves the conversion of NiO2 into 2Ni(OH)3 during the discharge of the battery.

In the chemical reaction, NiO2 is reduced to 2Ni(OH)3 as the battery operates, releasing energy in the form of electrical current.

So, the correct option is 3.