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प्रश्न
Give two test for an oxidising agent.
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उत्तर
Test For An Oxidising Agent:
- On heating strongly, oxidising agent liberates oxygen and to test oxygen: O2 gas rekindles a glowing splinter.
- On warming oxidising agent with cone. HCl, it liberates chlorine, that bleaches moist litmus paper.
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संबंधित प्रश्न
Identify in the following reaction (a) the substance oxidised, and (b) the substance reduced:
\[\ce{ZnO + C -> Zn + CO}\]
Give one example of an oxidation-reduction reaction which is also a combination reaction.
In the context of redox reactions, the removal of hydrogen from a substance is known as ______.
Name the following:
The process in which oxygen is added or hydrogen is removed.
Is it essential that oxidation and reduction must occur side by side in a chemical reaction? Explain
State whether the following conversion is oxidation or reduction:
K → K+ + e-
Complete and balance the following equation:
\[\ce{K + H2O -> }\]________+ ________
Which of the following statements about the given reaction are correct?
\[\ce{3Fe_{(s)} + 4H2O_{(g)} -> Fe3O4_{(s)} + 4H2_{(g)}}\]
(i) Iron metal is getting oxidised.
(ii) Water is getting reduced.
(iii) Water is acting as the reducing agent.
(iv) Water is acting as oxidising agent.
What is rancidity?
A reddish brown metal used in electrical wires when powdered and heated strongly turns black. When hydrogen gas is passed over this black substance, it regains its original colour. Based on this information answer the following questions:
- Name the metal and the black substance formed.
- Write balanced chemical equations for the two reactions involved in the above information
