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Identify the reducing agent in the following reactions
`"Fe"_2"O"_3 + 3"CO" -> 2"Fe" + 3"CO"_2`
Concept: undefined >> undefined
Identify the reducing agent in the following reactions
`2"H"_2 + "O"_2 -> 2"H"_2"O"`
Concept: undefined >> undefined
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Identify the oxidising agent (oxidant) in the following reactions
`"Pb"_3"O"_4 + 8"HCl" -> 3"PbCl"_2 + "Cl"_2 + 4"H"_2"O"`
Concept: undefined >> undefined
Identify the oxidising agent (oxidant) in the following reactions
`2"Mg" + "O"_2 -> 2"MgO"`
Concept: undefined >> undefined
Identify the oxidising agent (oxidant) in the following reactions
`"CuSO"_4 + "Zn" -> "Cu" + "ZnSO"_4`
Concept: undefined >> undefined
Identify the oxidising agent (oxidant) in the following reactions
`"V"_2"O"_5 + 5"Ca" -> 2"V" + 5"CaO"`
Concept: undefined >> undefined
Identify the oxidising agent (oxidant) in the following reactions
`3"Fe" + 4"H"_2"O" -> "Fe"_3"O"_4 + 4"H"_2`
Concept: undefined >> undefined
Identify the oxidising agent (oxidant) in the following reactions.
`"CuO" + "H"_2 -> "Cu" + "H"_2"O"`
Concept: undefined >> undefined
Grapes hanging on the plant do not ferment but after being plucked from the plant can be fermented. Under what conditions do these grapes ferment? Is it a chemical or a physical change?
Concept: undefined >> undefined
Which among the following are physical or chemical change?
Evaporation of petrol
Concept: undefined >> undefined
Which among the following are physical or chemical change?
Burning of Liquefied Petroleum Gas (LPG)
Concept: undefined >> undefined
Which among the following are physical or chemical change?
Heating of an iron rod to red hot
Concept: undefined >> undefined
Which among the following are physical or chemical change?
Curding of milk
Concept: undefined >> undefined
Which among the following are physical or chemical change?
Sublimation of solid ammonium chloride
Concept: undefined >> undefined
During the reaction of some metals with dilute hydrochloric acid, following observations are made.
Silver metal does not show any change
Explain this observation giving suitable reason.
Concept: undefined >> undefined
During the reaction of some metals with dilute hydrochloric acid, following observations are made.
The temperature of the reaction mixture rises when aluminium (Al) is added.
Explain this observation giving suitable reason.
Concept: undefined >> undefined
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.
Concept: undefined >> undefined
During the reaction of some metals with dilute hydrochloric acid, following observations are made.
Some bubbles of a gas are seen when lead (Pb) is reacted with the acid.
Explain this observation giving suitable reason.
Concept: undefined >> undefined
Why do we store silver chloride in a dark coloured bottle?
Concept: undefined >> undefined
Zinc liberates hydrogen gas when reacted with dilute hydrochloric acid whereas copper does not. Explain why?
Concept: undefined >> undefined
