by Rahul Anand | Jul 26, 2023 | CBSE CLASS 10 CHEMISTRY
When an acid reacts with a metal, hydrogen gas (H2) is usually liberated. The reaction between an acid and a metal is a type of single-displacement or single-replacement reaction, where the more reactive metal displaces hydrogen from the acid, forming a metal salt and...
by Rahul Anand | Jul 26, 2023 | CBSE CLASS 10 CHEMISTRY
Curd and sour substances should not be kept in brass and copper vessels because these metals can react with acidic foods, leading to potential health hazards. The main concern is the leaching of toxic metals into the food or liquid being stored, which can contaminate...
by Rahul Anand | Jul 12, 2023 | CBSE CLASS 10 CHEMISTRY
1. The reaction between hydrogen gas and oxygen gas to form water: 2H2 + O2 → 2H2O 2. The reaction between iron and sulfur to form iron sulfide: Fe + S → FeS 3. The reaction between magnesium and oxygen to form magnesium oxide: 2Mg + O2 → 2MgO 4. The reaction between...
