English

Name the Most Abundant Metal in the Earth'S Crust. - Science

Advertisements
Advertisements

Question

Name the most abundant metal in the earth's crust.

Solution

Aluminium is the most abundant metal in the earth's crust.

shaalaa.com
  Is there an error in this question or solution?
Chapter 3: Metals and Non-metals - Exercise 1 [Page 131]

APPEARS IN

Lakhmir Singh Chemistry (Science) [English] Class 10
Chapter 3 Metals and Non-metals
Exercise 1 | Q 3.1 | Page 131

RELATED QUESTIONS

Name the following: Main ore of aluminium.


In the extraction of aluminium Write the cathode reaction in electrolytic reduction of alumina.


Name the chemical compound which is electrolysed in molten state to obtain sodium metal. Which gas is produced in this process?


Name one ore of aluminium. Name the aluminium compound present in this ore and write its chemical formula.


Which metal can be extracted from the following ore?

bauxite


Name the following:
Two metals which are found in the free or native state.


Correct the following statement :
Copper reacts with nitric acid to produce nitrogen dioxide.


Name the following :

The Process of heating an ore to a high temperature in the presence of air.


On the basis of reactivity metals are grouped into three categories: 

  1. Metals of low reactivity
  2. Metals of medium reactivity
  3. Metals of high reactivity

Therefore metals are extracted in pure form from their ores on the basis of their chemical properties.

Metals of high reactivity are extracted from their ores by electrolysis of the molten ore.

Metals of low reactivity are extracted from their sulphide ores, which are converted into their oxides. The oxides of these metals are reduced to metals by simple heating.

(a) Name the process of reduction used for a metal that gives vigorous reaction with air and water both.

(b) Carbon cannot be used as a reducing agent to obtain aluminium from its oxide? Why?

(c) Describe briefly the method to obtain mercury from cinnabar. Write the chemical equation for the reactions involved in the process.

                                     OR

(c) Differentiate between roasting and calcination giving chemical equation for each. 


The given reaction shows one of the processes to extract the metals like Iron and Manganese.

\[\ce{MnO2(s) + Al(s) -> Mn(l) + Al2O3(s) + Heat}\]

Identify the substance oxidised and reduced in the above reaction.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×