Question

State True/False for the following:

i) Formation of manure from leaves is a physical change.

ii) Iron pipes cated with zinc do not get rusted easily.

iii) Iron and rust are the same substances.

iv) The chemical name of baking soda is Sodium hydrogencarbonate.

v) Changes in which new substances are formed are called chemical changes.​​

Answer 1

1. False

• Formation of manure from leaves is a chemical change.

2. True

• Iron pipes coated with zinc do not get rusted easily.

3. False

• Iron and rust are different substances.

4. True

• The chemical name of baking soda is Sodium hydrogencarbonate (NaHCO₃).

5. True

• Changes in which new substances are formed are called chemical changes.

Answer 2

Answer:

Here your ans

(I) formation of manure from leaves is a physical change. :- false

(ii) iron pipes cated with zinc do not get rusted easily :- true

(iii) iron and rust are the same substances. :- false

(iv) the chemical name of baking soda is sodium hydrogen carbonate. :- true

(v) changes in which new substances are called chemical changes. :- true