Question

A. Oral Questions:
1. What is the chemical nature of rust?
2. Give one use of chromium.
3. Name (a) a solid metal and (b) a liquid metal at room temperature.​

Answer 1

Answer:

1.basic

2.used to galvanize pipes

3a)iron

b)mercury

Answer 2

Answer:

1.iron3

2.chromium is used to harden steels

3(a)gold(b)mercury