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महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (इंग्रजी माध्यम) इयत्ता १० वी

Classify the following metals based on their reactivity. Cu, Zn, Ca, Mg, Fe, Na, Li, Hg - Science and Technology 1

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प्रश्न

Classify the following metals based on their reactivity.
Cu, Zn, Ca, Mg, Fe, Na, Li, Hg

More reactive Moderately reactive Less reactive
     
     
टीपा लिहा
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उत्तर

More reactive Moderately reactive Less reactive
Ca Zn Cu
Na Mg Hg
Li Fe  
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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 8: Metallugy - Solve the following Questions

संबंधित प्रश्‍न

What do you observe when a few pieces of iron are dropped in a blue solution of copper sulphate?


Fill in the blank

When a piece of copper is added to silver nitrate solution, it turns ............in colour.


How will you obtain Magnesium oxide from magnesium.

Also give balanced equations for the reactions


What do you observe when Magnesium ribbon is burnt in oxygen.


Write chemical equation for the event.
Aluminium came in contact with air.


Write chemical equation for the event.

Iron filings are dropped in aqueous solution of copper sulphate.


Write a chemical equation for the following event.

Zinc oxide is dissolved in dilute hydrochloric acid.


With reference to Acid explain with a suitable example of how the reactivity of the metals could be differentiated.


Select the correct answer for the statement given below:

A neutral oxide which does not react with an acid or a base to give salt and water.


Give a balanced equation for the following type of reaction:

A displacement reaction in which a metal above hydrogen in the reactivity series, displaces another metal from the solution of its compound.


Explain the following reaction with the balanced equation.

Sulphur burns in air


Observe the following diagram and identify the type of reaction and write observation.


A metal A, which is used in thermite process, when heated with oxygen gives an oxide B, which is amphoteric in nature. Identify A and B. Write down the reactions of oxide B with HCl and NaOH.


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.


Give the steps involved in the extraction of metals of low and medium reactivity from their respective sulphide ores.


An element A burns with golden flame in air. It reacts with another element B, atomic number 17 to give a product C. An aqueous solution of product C on electrolysis gives a compound D and liberates hydrogen. Identify A, B, C and D. Also write down the equations for the reactions involved.


Metal ‘A’ has electronic configuration 2, 8, 1 and metal ‘B’ has electronic configuration 2, 8, 8, 2. Out of these, which metal is more reactive? Write the reaction of this metal with dilute HCl acid.


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