हिंदी

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

Advertisements
Advertisements

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.

रासायनिक समीकरण/संरचनाएँ
लघु उत्तरीय
Advertisements

उत्तर

Sodium oxide is a basic in nature. Sodium oxide reacts with water to form an alkali called sodium hydroxide.

\[\ce{\underset{(Basic oxide)}{\underset{Sodium oxide}{Na2O_{(s)}}} + \underset{Water}{H2O_{(l)}} -> \underset{(An alkali)}{\underset{Sodium hydroxide}{2NaOH_{(aq)}}}}\]

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 3: Metals and Non-metals - Exercise 1 [पृष्ठ १६६]

APPEARS IN

लखमीर सिंग Chemistry [English] Class 10
अध्याय 3 Metals and Non-metals
Exercise 1 | Q 40. (b) | पृष्ठ १६६

संबंधित प्रश्न

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


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


Write equations for the reactions of iron with steam. 


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


An element reacts with oxygen to give a compound with a high melting point. This compound is also soluble in water. The element is likely to be:


What will happen if a strip of copper is kept immersed in a solution of silver nitrate (AgNO3)?


Complete and balance the following equation:

\[\ce{Na + O2 ->}\]


Which of the following elements would yield a basic oxide.

Na, S, C, K, H


What happens when a rod of zinc metal is dipped into a solution of copper sulphate? Give chemical equation of the reaction involved.


Can we keep sodium immersed under water? Why?


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 copper from copper sulphate solution and one which does not.


An acidic oxide is produced by the element:
(a) Na
(b) C
(c) Ca
(d) H


An element E forms an oxide E2O. An aqueous solution of E2O turns red litmus paper blue.
(a) What is the nature of the oxide E2O?
(b) State whether element E is a metal or a non-metal.
(c) Give one example of an element like E.


An element X forms two oxides XO and XO2. The oxide XO has no action on litmus solution but oxide XO2 turns litmus solution red.
(a) What is the nature of oxide XO?
(b) What is the nature of oxide XO2?
(c) Would you call element X a metal or a non-metal? Give reason for your choice.
(d) Can you give an example of element like X?


Name a metal which does not react with cold as well as hot water but reacts with steam.


Calcium floats over water during the reaction with water. Give reason.  


An element X is soft and can be cut with a knife. This is very reactive to air and cannot be kept open in the air. It reacts vigorously with water. Identify the element from the following.


Generally, metals are solid in nature. Which one of the following metals is found in liquid state at room temperature?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×