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What is the Nature of the Oxide Na2o? What Happens When It is Dissolved in Water? Write the Chemical Equation of the Reaction Involved. - Science

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प्रश्न

What is the nature of the oxide Na2O? What happens when it is dissolved in water? Write the chemical equation of the reaction involved.

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उत्तर

Na2O is basic in nature. When it is dissolved in water, sodium hydroxide is formed.
Chemical equation: Na2O(s) + H2O(l) → 2NaOH(aq)

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अध्याय 3: Metals and Non-metals - Exercise 1 [पृष्ठ १३३]

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लखमीर सिंग Chemistry (Science) [English] Class 10
अध्याय 3 Metals and Non-metals
Exercise 1 | Q 40.2 | पृष्ठ १३३

संबंधित प्रश्न

.................... liberated when acetic acid reacts with sodium metal.
(a) Hydrogen
(b) Chlorine
(c) Oxygen
(d) Nitrogen


‘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’.


Name two metals which form amphoteric oxides.


Name the metal which has been placed at the bottom of the reactivity series.


Complete and balance the following equation:

Na  +  O2 →


Which of the following elements would yield a neutral oxide?

Na, S, C, K, H


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


A copper plate was dipped in AgNO3 solution. After certain time, silver from the solution was deposited on the copper plate. State the reason why it happened. Give the chemical equation of the reaction involved.


Which gas is produced when dilute hydrochloric acid is added to a reactive metal?


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


Write the equation for the reaction of Zinc with dilute hydrochloric acid.

Name the products formed. Also indicate the physical states of all the substances involved.


Hydrogen is not a metal but still it has been assigned a place in the reactivity series of metals. Why?


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


One of the following is not a neutral oxide. This is:
(a) CO
(b) H2O
(c) N2O
(d) Na2O


If A, B, C, D, E, F, G, H, I, J and K represent metals in the decreasing order of their reactivity, which one of them is most likely to occur in a free state in nature?


Write the chemical equation of the above process.


Explain the following: 

Reactivity of aluminium decrease if it is dipped in nitric acid.


Which property of metals is used for making bells and strings of musical instruments like Sitar and Violin?


The substance that will be flattened on beating with a hammer is ______.


Metals are generally solid. Which of the following metals is in the liquid state at room temperature?


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