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प्रश्न
Fill in the blank
In redox reaction oxidation and reduction occur ............................
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उत्तर
In redox reaction oxidation and reduction occur simultaneously.
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संबंधित प्रश्न
Identify in the following reaction (a) the substance oxidised, and (b) the substance reduced:
\[\ce{ZnO + C -> Zn + CO}\]
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?
In the context of redox reactions, the removal of hydrogen from a substance is known as ______.
Define redox reaction.
Describe briefly the ionic concept of oxidation and reduction. Give an equation to illustrate.
Complete and balance the following equation:
CuO +__________→ Cu +___________
Which among the following are physical or chemical change?
Burning of Liquefied Petroleum Gas (LPG)
Zinc liberates hydrogen gas when reacted with dilute hydrochloric acid whereas copper does not. Explain why?
When hydrogen gas is passed over black copper oxide, a reddish-coloured layer of copper is formed.
Answer the questions that follow based on this reaction.
- Write the equation.
- What type of reaction is it?
- Complete the blanks:
In this reaction, an oxygen atom goes away from CuO (copper oxide), which means that ______ of copper oxide takes place, whereas a hydrogen molecule takes up an oxygen atom and water (H2O) is formed, meaning ______ of hydrogen takes place.
Metals are good ______.
