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प्रश्न
Hydrogen burns with a ______ flame and ______ sound is heard.
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उत्तर
Hydrogen burns with a pale blue flame and pop sound is heard.
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संबंधित प्रश्न
When SO2 gas is passed through saturated solution of H2S, the following reaction occurs:
\[\ce{SO2 + 2H2S -> 2H2O + 3S}\]
In this reaction, which substance is oxidised and which one is reduced?
Define the following in terms of gain or loss of hydrogen with one example:
Reduction
Fill in the blank
In redox reaction oxidation and reduction occur ............................
Divide the following reactions into oxidation and reduction half-reaction:
Zn + Pb2+→ Pb + Zn 2+
Complete and balance the following equation:
\[\ce{K + H2O -> }\]________+ ________
Explain the term redox reaction with an example involving the reaction of hydrogen sulphide with chlorine.
Identify the oxidising agent (oxidant) in the following reactions
`3"Fe" + 4"H"_2"O" -> "Fe"_3"O"_4 + 4"H"_2`
During the reaction of some metals with dilute hydrochloric acid, following observations are made.
The reaction of sodium metal is found to be highly explosive
Explain this observation giving suitable reason.
The tarnishing of metals is due to the formation of ______.
What is rancidity?
