Question

3.
"Sodium and potassium is
stored under kerosene .Give reason.

4.
Why is bronze preferred over copper metal for making statues?​

Answer 1

Answer:

"Sodium and potassium is

stored under kerosene oil because they are more reactive metals they vigorously react with oxygen and can catch fire if in the open so ,they are stored under oil.....

Answer 2

Explanation:

because sodium is very reactive metals.it react with water in short time and produce fires. so it is kept in kerosene.

bronze is very hard metal and malleable than other which is hard.so it is used to make status over copper metal.