English

Complete the Following by Selecting the Correct Option from the Choices Given : the Metal Whose Oxide, Which is Amphoteric, is Reduced to Metal by Carbon Reduction ________ - Chemistry

Advertisements
Advertisements

Question

Complete the following by selecting the correct option from the choices given :
The metal whose oxide, which is amphoteric, is reduced to metal by carbon reduction ________

Options

  • Fe

  • Mg

  • Pb

  • Al

MCQ
Fill in the Blanks
Advertisements

Solution

The metal whose oxide, which is amphoteric, is reduced to metal by carbon reduction Pb.

shaalaa.com
  Is there an error in this question or solution?
Chapter 7: Metallurgy - Exercise 11 [Page 189]

APPEARS IN

Frank Chemistry Part 2 [English] Class 10 ICSE
Chapter 7 Metallurgy
Exercise 11 | Q 5.2 | Page 189

RELATED QUESTIONS

How is the following metallic oxide reduced? Write equations:

Iron (ll) oxide


Give equation for the following conversion:Aluminium to sodium aluminate.


Name oxide of one metal which is reduced by (give equation): Electrolytic reduction


For the reaction of a metal oxide. Suggest a reducing agent other than carbon


Name a non-metallic element which forms acidic and neutral oxides


Name a non-metallic element which is a liquid at ordinary temperatures


In order to obtain one tone of aluminium, the following inputs are required:
4 tones of bauxite, 150 Kg of sodium hydroxide and 600 Kg of graphite.
The aluminium compound in bauxite is aluminium oxide and the main impurity is iron (II) oxide. Aluminium is obtained by the electrolysis of aluminium oxide dissolved in cryolite.
(i) Write the formula of cryolite.
(ii) Write down the word which correctly completes the following sentence.
"By dissolving aluminium oxide in cryolite, a ______ (conducting / non- conducting) solution is produced.
(iii) Why so much graphite required for this electrolytic process.
(iv) Write the equation for the reaction which takes place at cathode.


Answer the following question with respect by hydrogen : Identify the components of the electrolyte other than pure alumina and the role played by each.


  1. A to F below relate to the source and extraction of either zinc or aluminium:
  2. Bauxite
  3. Coke
  4. Cryolite
  5. Froth floatation
  6. Sodium hydroxide solution
  7. Zinc blende
  8. Write down the three letters each from the above list which are relevant to
  9. Zinc
  10. Aluminium
  11. Fill in the blanks using the most appropriate words from A to F.
  12. The ore from which aluminium is extracted must first be treated with ………………. so that pure aluminium oxide can be obtained.
  13. Pure aluminium oxide is dissolved in ….. to make a conducting solution.

 iii. Write the formula of cryolite.


Name two metallic oxides which cannot be reduced by carbon, carbon monoxide or hydrogen.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×