(i) 4Na(s) + O2(g) → 2Na2O(s)
(ii) CuO(s) + H2(g) → Cu(s) + H2O(l)
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Identify the substance oxidised, reduced, oxidising agent and reducing agent for each of the following reactions:
(a) Oxidised substance → C6H6O2 Reduced substance → AgBrO xidising agent → AgBr Reducing agent → C6H6O2 (b)Oxidised substance → HCHO Reduced [Ag(NH3)2]+ substance → Oxidising agent → [Ag(NH3)2]+ Reducing agent → HCHO (c) Oxidised substance → HCHO Reduced substance...
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Which of the following statements are true for pure substances? (i) Pure substances contain only one kind of particles
(b) (i) and (iii)
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Identify the substances oxidised and the substances reduced in the following reactions:
(i) In this reaction, sodium (Na) is changed into sodium oxide (Na2O). This is the addition of oxygen to sodittm. Since addition of oxygen is called oxidation, therefore, the substance...
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Identify the substance oxidised, substance reduced, oxidising agent and reducing
Substance oxidised: HCl Substance reduced:MnO2 Oxidising agent: MnO2 Reducing agent: HCl
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Identify the substance oxidised, substance reduced, oxidising agent and reducing agent:
Substance oxidised :HCI Substance reduced :MnO2 Oxidising agent :MnO2 Reducing agent :HCI
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Identify the substances that are oxidised and the substances that are reduced in the following reactions:
i. In the given reaction, sodium gets oxidised to sodium oxide (Na2O) and oxygen gets reduced. ii. In the given reaction, hydrogen getsoxidised to water and copper (II) oxide gets reduced...
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Identify the substance that is oxidised and substance that is reduced in the reaction. CuO(s) + H2(g) → Cu(s) + H2O(l)
It is a combination reaction.
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What is oxidation reaction? Identify in the following reaction: i. the substance oxidised and
i. Oxidation reaction is a chemical reaction in which substance gains oxygen or loses hydrogen. ii. In the given reaction, C isoxidised to CO and ZnO is reduced to Zn.
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What is redox reaction? When a magnesium ribbon burns in air with a dazzling flame and forms a white ash, is magnesium oxidised or reduced? Why?
i. The reaction in which one reactant gets oxidised and the other reactant gets reduced is called redox reaction. ii. When a magnesium ribbon burns in air with a dazzling flame...
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i. What do you see when a magnesium ribbon is burnt? Is magnesium oxidised or reduced in this reaction? ii. Define corrosion.
When magnesium ribbon is burnt, dazzling white flame is observed and there is formation of white ash. Magnesium is said to be oxidised as it is combining with oxygen. ii. The...
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