Advertisements
Advertisements
Question
Identify the oxidising agent (oxidant) in the following reactions
`2"Mg" + "O"_2 -> 2"MgO"`
Advertisements
Solution
O2
APPEARS IN
RELATED QUESTIONS
Define ‘redox reaction’. Give one example.
Identify the substances that are oxidised and the substances that are reduced in the following reaction.
\[\ce{4Na(s) + O2(g) -> 2Na2O(s)}\]
Write the chemical formula of rust.
In the reaction represented by the equation:
MnO2 + 4HCl → MnCl2 + 2H2O + Cl2
(i) name the substance oxidised.
(ii) name the oxidising agent.
(iii) name the substance reduced.
(iv) name the reducing agent.
Give one example of an oxidation-reduction reaction which is also a combination reaction.
Explain reduction in terms of gain or loss of oxygen with one example.
In the context of redox reactions, the removal of hydrogen from a substance is known as:
(a) oxidation
(b) dehydration
(c) reduction
(d) dehydrogenation
Explain the following in term Reduction of gain or loss of oxygen with two example.
Compare hydrogen and halogens on the basis of:
reaction with oxygen
State whether the following conversion is oxidation or reduction:
2Cl- - e-→ Cl2
Reacting with water, an active metal produces
Give two test for an oxidising agent.
Give two tests for a reducing agent.
When the positive charge on an ion increases or the negative charge on them decreases it is called as _______.
Explain the following reaction with their balanced chemical equation.
Hydrogen sulphide reacts with sulphur dioxide.
Identify the reducing agent in the following reactions -
`"H"_2"O" + "F"_2 -> "HF" + "HOF"`
During the reaction of some metals with dilute hydrochloric acid, following observations are made.
The temperature of the reaction mixture rises when aluminium (Al) is added.
Explain this observation giving suitable reason.
Identify the following reactions as oxidation/reduction/redox reaction
2Mg +O2 → 2MgO
