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प्रश्न
Give two test for an oxidising agent.
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
TRUE \ FALSE
Hydrogen is a good oxidizing agent.
The colours of aqueous solutions of CuSO4 and FeSO4 as observed in the laboratory are:
(A) pale green and light blue respectively
(B) light blue and dark green respectively
(C) dark blue and dark green respectively
(D) dark blue and pale green respectively
State whether the following conversion is oxidation or reduction:
PbO2 + SO2→ PbSO4
State a reason why, when hydrogen is passed over heated copper oxide, the resultant product formed, differs in colour from the original reactant.
Write chemical formula for rust.
Identify the reducing agent in the following reactions
`4"NH"_3 + 5"O"_2 -> 4"NO" + 6"H"_2"O"`
Identify the oxidising agent (oxidant) in the following reactions.
`"CuO" + "H"_2 -> "Cu" + "H"_2"O"`
Which among the following are physical or chemical change?
Curding of milk
Write a short note on oxidizing and reducing agents.
Define oxidation number.
