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प्रश्न
Divide the metals Cu, Zn, Ca, Mg, Fe, Na, Li into three groups, namely reactive metals, moderately reactive metals and less reactive metals.
उत्तर
| Reactive metals | Moderately reactive metals | Less reactive metals |
| Ca | Fe | Cu |
| Na | Zn | |
| Li | Mg |
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संबंधित प्रश्न
What do you observe when a few pieces of iron are dropped in a blue solution of copper sulphate?
What do you observe when silver nitrate is added to a solution of sodium chloride?
What do you observe when ferrous sulphate solution is added to an aqueous solution of sodium hydroxide.
How will you obtain Zinc chloride from zinc.
Also give balanced equations for the reactions
What do you observe when Magnesium ribbon is burnt in oxygen.
What is meant by the metal reactivity series ? State its importance, (any two points).
Write chemical equation for the event.
Aluminium came in contact with air.
Write the chemical equation for the event.
A reaction was brought about between ferric oxide and aluminum.
With reference to Water explain with suitable examples of how the reactivity of the metals could be differentiated.
With reference to Acid explain with a suitable example of how the reactivity of the metals could be differentiated.
Complete the statement by filling in the blank with the correct word:
The metal which reacts with steam and the reaction is reversible is ________.
Explain the following reaction with the balanced equation.
Sodium burns in air
Explain the following reaction with the balanced equation.
Sulphur burns in air
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- Identify the compound X
- Name the reaction
- Write down its reaction.
A metal that exists as a liquid at room temperature is obtained by heating its sulphide in the presence of air. Identify the metal and its ore and give the reaction involved.
A metal M does not liberate hydrogen from acids but reacts with oxygen to give a black colour product. Identify M and black coloured product and also explain the reaction of M with oxygen.
Of the three metals X, Y and Z. X reacts with cold water, Y with hot water and Z with steam only. Identify X, Y and Z and also arrange them in order of increasing reactivity.
Arrange the following as per the instruction given in the bracket:
Al, K, Mg, Ca (decreasing order of its reactivity)
