Question

Q5. State True/False

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

Answer:

your answer is

1. false
2. true
3. true
4. false
5. true

please mark me as brainliest answer then follow me please please please please please please

please follow me please please please please please follow me please please please please please follow me please please please please please follow me please please please please

Answer 2

State True/False.

AnswEr:

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

${\underline{\boxed{\sf{\pink{\;False\;}}}}}$

➟ Formation of manure from leaves is a chemical change.

━━━━━━━━━━━━━━━

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

${\underline{\boxed{\sf{\purple{\;True\;}}}}}$

➟ Because, Iron get rusted in presence of air and moisture. Iron pipes coated with zinc to protect iron from Oxygen and moisture present in Air.

━━━━━━━━━━━━━━━

iii). Iron and rust are the same substances.

${\underline{\boxed{\sf{\red{\;False\;}}}}}$

➟False because, Iron and rust are different substances. Rust is iron oxide $\sf Fe_2O_3$.

━━━━━━━━━━━━━━━

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

${\underline{\boxed{\sf{\blue{\;True\;}}}}}$

➟ Sodium hydrogencarbonate, commonly known as baking soda or bicarbonate of soda. It's chemical formula is $\sf NaHCO_3$.

━━━━━━━━━━━━━━━

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

${\underline{\boxed{\sf{\green{\;True\;}}}}}$

➟ When a substance combines with another to form a new substance, know as chemical change.