Question

give me all the answer of question from question number 4 to question number 7 don't spam please

Answer 1

4 i)- Alessandro Volta

ii)- Carlisle and Nicholsom  

iii)- Michael Faraday

 

5 (a)   A is anode and B is cathode.

 (b) Electrolysis

(c) from cathode h2 gas is relase

and from anode o2 gas is relased

6)⇒

a)Electromagnetic or magnetic induction is the production of an electromotive force (i.e., voltage) across an electrical conductor in a changing magnetic field.

b) Electrolysis, process by which electric current is passed through a substance to effect a chemical change. The chemical change is one in which the substance loses or gains an electron (oxidation or reduction).

c)An electrode is an electrical conductor used to make contact with a nonmetallic part of a circuit (e.g. a semiconductor, an electrolyte, a vacuum or air).

d)Electrorefining. : refining of a metal (such as copper) by electrolysis, the crude metal used as the anode going into solution and the pure metal being deposited upon the cathode. — called also electrolytic refining.

7) ⇒

i)Electrolysis is used in industry for the production of many metals and non-metals (e.g., aluminium, magnesium, chlorine, and fluorine).

ii)Electrolysis is commonly employed for coating one metal with another. The method of coating one metal with another using an electric current is called electroplating.

iii)Production of oxygen for spacecraft and nuclear submarines.Metals are protected by  coating of nickel aur chromium.

Hope it will help you out @

Mark me brainlest  if you like my way of answer

Answer 2

hope it's help you


shivam