मराठी

Write an equation for the reaction of: Magnesium with oxygen

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प्रश्न

Write an equation for the reaction of:

Magnesium with oxygen

रासायनिक समीकरणे/रचना
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उत्तर

\[\ce{\underset{(Metal)}{\underset{Magnesium}{2Mg_{(s)}}} + \underset{(From air)}{\underset{Oxygen}{O2_{(g)}}} -> \underset{(Basic oxide)}{\underset{Magnesium oxide}{2MgO_{(s)}}}}\]

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 3: Metals and Non-metals - Exercise 1 [पृष्ठ १६४]

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लखमीर सिंह Chemistry [English] Class 10
पाठ 3 Metals and Non-metals
Exercise 1 | Q 19. (b) | पृष्ठ १६४

संबंधित प्रश्‍न

_________ solution is blue in colour.
(a) CuSO4
(b) FeSO4
(c) ZnSO4
(d) Al2(SO4)3


‘E’ is an element which reacts with oxygen to form an oxide E2O. An aqueous solution of E2O turns red litmus blue, so:
i. What is the nature of oxide E2O ?
ii. Write the name of element ‘E’.


Write equations for the reactions of iron with steam. 


The solution of Aluminium sulphate in water is .....................

(a) Green

(b) Colourless

(c) Pink

(d) Blue


A student added few pieces of aluminium metal to two test tubes A and B containing aqueous solutions of iron sulphate and copper sulphate. In the second part of her experiment, she added iron metal to another test tubes C and D containing aqueous solutions of aluminium sulphate and copper sulphate.

In which test tube or test tubes will she observe colour change? On the basis of this experiment, state which one is the most reactive metal and why.


From amongst the metals sodium, calcium, aluminium, copper and magnesium, name the metal:

  1. which reacts with water only on boiling, and
  2. another which does not react even with steam.

Complete and balance the following equation:

\[\ce{Fe_{(s)} + H2O_{(g)} ->[Red heat]}\]


The white powder formed when magnesium ribbon burns in oxygen is of ______.


Calcium is a ______ reactive metal than sodium.


 What happens when magnesium reacts with very dilute nitric acid? Write an equation for the reaction involved.


Why is white phosphorus kept immersed under water?


Can we keep sodium immersed under water? Why?


You are given samples of three metals − sodium, magnesium and copper. Suggest any two activities to arrange them in order of their decreasing reactivities.


What is meant by the reactivity series of metals? Arrange the following metals in an increasing order of their reactivities towards water:
Zinc, Iron, Magnesium, Sodium


Name one metal which displaces silver from silver nitrate solution and one which does not.


A metal less reactive and another metal more reactive than hydrogen are:
(a) aluminium and lead
(b) iron and magnesium
(c) copper and tin
(d) copper and mercury


An element is soft and can be cut with a knife. If is very reactive and cannot be kept open in the air. It reacts vigorously with water. The element is most likely to be:
(a) Mg
(b) S
(c) P
(d) Na


State and explain the reaction, if any, of the following metals with a solution of copper sulphate:
(a) Gold
(b) Copper
(c) Zinc
(d) Mercury


Which of the following reactions will not occur? Why not?

(a) MgSO(aq) + Cu (s) → CuSO(aq) + Mg (s)

(b) CuSO4 (aq) + Fe (s) → FeSO4 (aq) + Cu (s)

(c) MgSO4 (aq) + Fe (s) → FeSO4 (aq) + Mg (s)


Aluminium is used for making cooking utensils. Which of the following properties of aluminium are responsible for the same?

  1. Good thermal conductivity
  2. Good electrical conductivity
  3. Ductility
  4.  High melting point

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