Problem

What are alloys? Name an important alloy which co…

Problem 26 Easy Difficulty

Indicate the steps in the preparation of:
(i) $\mathrm{K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}$ from chromite ore.
(ii) $\mathrm{KMnO}_{4}$ from pyrolusite ore.

Answer

Related Courses

Chemistry 102

NCERT Class 12 Part 1 - Chemistry

Chapter 8

The d-and f-Block Elements

Discussion

You must be signed in to discuss.

Top Chemistry 102 Educators

Watch More Solved Questions in Chapter 8

Problem 1

Problem 2

Problem 3

Problem 4

Problem 5

Problem 6

Problem 7

Problem 8

Problem 9

Problem 10

Problem 11

Problem 12

Problem 13

Problem 14

Problem 15

Problem 16

Problem 17

Problem 18

Problem 19

Problem 20

Problem 21

Problem 22

Problem 23

Problem 24

Problem 25

Problem 26

Problem 27

Problem 28

Problem 29

Problem 30

Problem 31

Problem 32

Problem 33

Problem 34

Problem 35

Problem 36

Problem 37

Problem 38

Video Transcript

or that is extracted from the mine closed toe. Some plants toe some processes on that so that they amount off the purification off the or increased. And this plans called beneficiary ation or the concentration. So the first thing is that the or extracted from the mine, it goes to the beneficiary ation or the concentration front on. After that, they're different. Estacion happen on the or the 1st 1 is crushing. So this guy's off the yes soon or the or decrease to some extent after crushing, it was grinded on the size off the or the Cristo, the amount that is because I'm a little bit like a father on the other. Separation process can be done on the or the second is suspicious called separation. Different kind of separation happens on the also that the going which is useful part off the mineral, is separated from the precious part. This the separation can be done in a physical way. For example, the soil off the or can be washed by the water. After that, we can have different kind of separation. For example, electorates study separation if the or has the ability to become magnets for my critic. Magnetic separation can be used to separate the magnetic parts from the gun. Also, the others making that is used. For example. He's them location in the flotation, some kind off agent reagents is used and so that some part is become with less than city and goes on the top off. The solution on the other ports wishes heavy remains at the end on then the top part of the solutions that praises for on the bottom and it goes for other process Onda. Also the other way is the gravity separation. This part of separation is done so that the only want is part off the or ists appraiser from the precious work on most of this happens the in the best for so after that, we need to separate the water from the precious part and it is called the water, like the watering can happens in the, um, filters. It can be done in dry years, or it is possible that there was her is separators from there. Other port a solution in the Tickner and ushered. The whole process is wrong on the precious metal amount in the or increased Anderson unwanted pours off the or It's the praise him that all goes toe another process for, for example, melting and other person.

We have video lessons for 50.00% of the questions in this textbook