Home
Class 12
CHEMISTRY
The process of removing impurity from a ...

The process of removing impurity from a crude metal is called

A

concentration

B

calcination

C

refining

D

roasting

Text Solution

Verified by Experts

The correct Answer is:
c

refining
Promotional Banner

Topper's Solved these Questions

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    ICSE|Exercise ISC EXAMINATION QUESTIONS ( PART - II ( DESCRIPTIVE QUESTIONS))|33 Videos
  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    ICSE|Exercise EXERCISE (PART-I ( OBJECTIVE QUESTIONS )) (Fill in the blanks)|60 Videos
  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    ICSE|Exercise EXERCISE (PART-II ( DESCRIPTIVE QUESTIONS )) (LONG ANSWER QUESTIONS)|53 Videos
  • ELECTROCHEMISTRY

    ICSE|Exercise ISC EXAMINATION QUESTIONS (PART-II Numerical Problems) |19 Videos
  • HALOALKANES AND HALOARENES

    ICSE|Exercise SOURCE|9 Videos

Similar Questions

Explore conceptually related problems

The process of removal of impurities from a crude metal is called :

The process of removing dissolved impuities from a colloidal system by means of diffusion through suitable membrane under the influence of an electric field os called

Assertion:- Boric acid cannot be titrated with NaOH solution. Reason:- Cupellation is the process used to remove silver impurity from Pb. Reason:- This method is used when metal is easily oxidised by air but oxidation of impurity is not possible.

Which of the following is not a method of removing impurities from a colloidal sol ?

The process of removing stamen from flora buds during hybridisation experiments is

Emasculation is the process of removal of pistils from unisexual flowers.

Lead obtained from galena ore (PbS) by air reduction or carbon reduction process contains base metal (cu, Bi, As, Sn,Zn) as impurities. The removal of the impurity of Ag from the commercial lead is called.

The process of removing lighter gangue particles by washing in a current of water is called: