Question

A. Complete the following statement using appropriate word (s) :


1. the ________oxides true blue litmus red.

2. Metals react with acids and from salt and _________gas.


3. ___________is a reddish-brown coating formed on iron object on exposure to mosit air.


4. __________ is used for galvanising iron. ​

Answer 1

Answer:

plz..read the ch..carefully