The pair of compounds that can exist together is
The pair of compounds that can exist together is Options (a) FeCl₃,SnCl₂ (b) HgCl₂,SnCl₂ (c) FeCl₂,SnCl₂ (d) FeCl₃,KI Correct Answer:…
7 years ago
Hydrogen and Redox Reactions
In acidic medium, H₂O₂ changes Cr₂O₇²⁻ to CrO₅ which has two
In acidic medium, H₂O₂ changes Cr₂O₇²⁻ to CrO₅ which has two ( -O - O -) bonds. Oxidation state of…
7 years ago
Identify Z in the sequence of reaction
Identify Z in the sequence of reaction : HBr/H₂O₂ C₂H₅ONa CH₃CH₂CH = CH₂ → Y → Z Options (a) CH₃…
7 years ago
Role of hydrogen peroxide in the above reactions is respectively
(I) H₂O₂ + O₃ → H₂O + 2O₂ (II) H₂O₂ + Ag₂O → 2Ag + H₂O + O₂ Role of…
7 years ago
The oxidation states of sulphur in the anions : SO₃²⁻,S₂O₄²⁻ and S₂O₆²⁻
The oxidation states of sulphur in the anions : SO₃²⁻,S₂O₄²⁻ and S₂O₆²⁻ follow the order Options (a) S₂O₄²⁻ < SO₃²⁻…
7 years ago
The oxidation numbers of hydrogen in KH,MgH₂ and NaH are respectively
The oxidation numbers of hydrogen in KH,MgH₂ and NaH are respectively Options (a) 2,1 and -2 (b) 1,1 and 1…
7 years ago
Which of the following is a redox reaction
Which of the following is a redox reaction Options (a) Evaporation of H₂O (b) Both oxidation and reduction (c) H₂SO₄…
7 years ago
In the reaction : 2P₂O₅ + 2HNO₃ → P₄O₁₀ + x, the term x is
In the reaction : 2P₂O₅ + 2HNO₃ → P₄O₁₀ + x, the term x is Options (a) N₂O₄ (b) H₂O…
7 years ago
The oxide,which can not act as a reducing agent, is
The oxide,which can not act as a reducing agent, is Options (a) CO₂ (b) ClO₂ (c) NO₂ (d) SO₂ Correct…
7 years ago
If an atom is reduced, its oxidation number
If an atom is reduced, its oxidation number Options (a) does not change (b) increases (c) sharply decreases (d) slightly…
7 years ago