The reaction in which hydrogen peroxide acts as a reducing agent is
The reaction in which hydrogen peroxide acts as a reducing agent is Options (a) PbS + 4H₂O₂ → PbSO₄ +…
7 years ago
Hydrogen and Redox Reactions
Alum is a water purifier because it
Alum is a water purifier because it Options (a) coagulates the impurities (b) softens hard water (c) gives taste (d)…
7 years ago
What is the volume of ’20 volume H₂O₂. required to get 5000 cm³ of oxygen at STP?
What is the volume of '20 volume H₂O₂. required to get 5000 cm³ of oxygen at STP? Options (a) 250…
7 years ago
Water is a
Water is a Options (a) amphoteric solvent (b) aprotic solvent (c) prophobic solvent (d) prophilic solvent Correct Answer: amphoteric solventExplanation:No…
7 years ago
Ammonia gas dissolves in water to form NH₄OH.In this reaction water acts as
Ammonia gas dissolves in water to form NH₄OH.In this reaction water acts as Options (a) a conjugate base (b) an…
7 years ago
If 10 cm³ solution of H₂O₂ ,on decomposition gives 150 cm³ of O₂
If 10 cm³ solution of H₂O₂ ,on decomposition gives 150 cm³ of O₂ at STP, then volume strength of H₂O₂…
7 years ago
If 2 g of aluminium is treated, first with excess of dilute H₂SO₄ and then
If 2 g of aluminium is treated, first with excess of dilute H₂SO₄ and then with excess of NaOH, the…
7 years ago
Chemical A is used for water softening to remove temporary hardness.
Chemical A is used for water softening to remove temporary hardness. A reacts with sodium carbonate to generate caustic soda.When…
7 years ago
If a given sample of water contains 0.06 g of Ca²⁺ ion per kg, calculate
If a given sample of water contains 0.06 g of Ca²⁺ ion per kg, calculate the ppm level of Ca²⁺…
7 years ago
Calculate the amount of [Ca(OH)₂] required to remove the hardness of water
Calculate the amount of [Ca(OH)₂] required to remove the hardness of water from 60,000 litres containing 16.2 g of Ca(HCO₃)₂…
7 years ago