मराठी

Out of the Following Oxides, the Amphoteric Oxide Is: (A) Fe2o3 (B) Al2o3 (C) P2o5 (D) N2o

Advertisements
Advertisements

प्रश्न

Out of the following oxides, the amphoteric oxide is:
(a) Fe2O3
(b) Al2O3
(c) P2O5
(d) N2O

Advertisements

उत्तर

(b) Al2O3
Al2O3 can react with acids as well as bases to form salt and water.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 3: Metals and Non-metals - Exercise 1 [पृष्ठ १३५]

APPEARS IN

लखमीर सिंह Chemistry [English] Class 10
पाठ 3 Metals and Non-metals
Exercise 1 | Q 75 | पृष्ठ १३५

संबंधित प्रश्‍न

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


The reaction of an iron nail with copper sulphate solution is ........... reaction.

(a) Combination

(b) Displacement

(c) Double displacement

(d) Decomposition


Fill in the following blank with suitable word:

 Magnesium liberates ............... gas on reacting with hot boiling water.


Which of the following elements would yield an acidic oxide.

Na, S, C, K, H


What type of oxides are formed when non-metals react with oxygen? Explain with an example.


Explain why, metals usually do not liberate hydrogen gas with dilute nitric acid.


How do non-metals react with hydrogen? Explain with an example.


Can we keep sodium immersed under water? Why?


Describe the reaction of potassium with water. Write the equation of the reaction involved.


What is the action of water on magnesium ? Write equation of the chemical reaction involved.


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


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


The least reactive metal among the following is:
(a) sodium
(b) silver
(c) copper
(d) lead


Which one of the following four metals would be displaced from the solution of its salt by the other three metals?
(a) Zn
(b) Ag
(c) Cu
(d) Mg


In nature, metal A is found in a free state while metal B is found in the form of its compounds. Which of these two will be nearer to the top of the activity series of metals?


A zinc plate was kept in a glass container having CuSO4 solution. On examining it was found that the blue colour of the solution is getting lighter and lighter. After a few days, when the zinc plate was taken out of the solution, a number of small holes were noticed in it. State the reason and give chemical equation of the reaction involved.


Rewrite the following statement by selecting the correct option.
A solution of Al2(SO4)3 in water is _____________.


Arrange the following metals in the increasing order of their reactivities:

Copper, Zinc, Aluminium, and Iron


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


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×