Question

A metal surface is cleaned by rubbing with sand paper to remove a layer of its________on reaction with _________form corresponding oxide which are _________in nature as they turn_____litmus into____liberateo on reaction with acid___gas

Answer 1

Answer:

A metal surface is cleaned by rubbing with sandpaper to remove a layer of its oxide on reaction with oxygen form corresponding oxide which are basic in nature as they turn red litmus into blue and liberate hydrogen gas on reaction with acid.

Explanation:

Mark as brainliest!

Answer 2

Answer:

1.oxide

2.oxygen

3.basic

4.blue

5.red

6.h2