19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
In the following equation MnO₂ acts as MnO 2H O 2e MnO 4OH →
Assertion (A): SO₂ and Cl₂ are both bleaching agents Reason (R): Both are reducing agents
Assertion (A): H₂O₂ can acts as an oxidizing agent. Reason (R): All the peroxides behave as oxidizing agents only.
In the reaction 2FeCl H S 2FeCl 2HCl S →
In the reaction 3Br 6CO 3H O 5Br BrO 6HCO →
In the reaction o 5 2 3Cl 6NaOH Na ClO 5Na Cl 3H O → The element which loses as well as gains electrons is
The number of electrons lost in the following change is Fe H O Fe O H →
Which of the following is the best description of the behaviour of bromine in the reaction given below? o H O Br HOBr H Br →
In the reaction o o ½ K O KO →
In the reaction, SO 2H S 3S 2H O → the substance oxidized is
In which of the following is the highest oxidation state not possible?
A metal ion M3+ loses 3 electrons, its oxidation number will be :
In which of the following compounds, the oxidation number of iodine is fractional?
In the equation NO H O NO 2H ne → n stands for
An element exhibits an oxidation state -2. How many electrons are present in its outer shell?
In which of the following compounds is the oxidation state of C highest?
The oxidation state of C in diamond is
The oxidation states of the most electronegative elements in the products of the reaction between BaO₂ and H₂SO₄ are
Oxidation number of carbon in CCl is :
The oxidation number of C in CH₂O is
Which one of the following reaction involves oxidation- reduction?
The oxidation number of C in HNC is
An element that never has a positive oxidation state in any of its
Nitrogen show different oxidation states in the range
The oxidation number of xenon is XeOF₂ is