How to write in chemistry practical exam #practicalexam #12thchemistry @a2zpractical991

A2Z practical
44 followers
@a2zpractical991
How to write salt analysis and Preparation organic inorganic video link
https://youtu.be/WdrZYMhcDn4?si=7NKzGUFNKoEpP6n1
#maharashtraboard #exam #ssc #practical #class12thpractical #hscboard #experiment #chemistry#12th #hscadmission2023 #hsc
AI Generated·May contain errors
Video Summary
AI GeneratedThis video provides a comprehensive guide for students of the Maharashtra State Board on how to correctly fill out the chemistry practical examination sheet, specifically focusing on the titration of Mohr salt using potassium permanganate ($\\text{KMnO}_4$). The instructor explains the documentation process, reading records, and the necessary calculations to maximize marks.
Hey guys, and welcome to my channel
Friends, my name is Shashi Shukla and you are watching ATJ Practical
Friends, there was a lot of demand in the board exam.
In the practical exam of the board
How to write the titration of Mohr's salt or salt analysis
So I've made videos in 2-3 parts
Go and see it.
In this, I have mentioned the Mohr's salt one.
The titration is with your Kamino 4.
So I wrote on the paper sheet of the original board
And tell it in a very excellent way
What you have to write and what you are not writing
And who has marks on whom?
Go and see it, and do well on the exam.
So that you can score as many marks as possible in your practical exam
Subscribe to the channel and like the video
So go and see it
So, friends, there was a lot of demand
How to write in the paper of the Maharashtra Board
I have brought everything here.
And here I have directly taken the seat of the Maharashtra Board
That means you will get the same things there in the board practical exam.
This is going to get the same
Same this is
The Maharashtra Board provides such things there.
Where you need to fill in some details
These numbers mean nothing to us.
Maharashtra State Board of Secondary and Higher Secondary Education
Pune
All these things are written on it
Now this is what
Signature of the external examiner with date
So this is our work
We are external
The external teacher of your college is here.
And the external sign will be here
Internal sign here
External sign
That does not mean anything to you
What does it mean to you?
Practical examination
So for now, this is chemistry.
So what will you write?
Chemistry
And chemistry friends
You must know the board.
That is 55.
Your college will tell you
At the
So at the
What is your sentence?
So you write the name of your college
Someone's Viva College
Someone else's college
Ruia College
There are many colleges like this.
So for now
Whatever college it will be
Specify the name of the college here
Write the name of your college here
OK
Name of the college
OK
After that
Code number
Institute number
Will be provided by your college
For now
Our J18.07.023
OK
Candidate seat number
So you will know your seat number
OK
So whatever will be
A1346
Means whatever will be
You put your seat number
Candidate seat number in words
So okay
You can also write it in words.
So you have 13 lakhs
1.3 million
forty thousand
OK
You have to do it well
I'm just telling you in general
Here is your pilot reading
What is it?
Pilot reading
OK
Here is your buret reading
What is it?
Buret reading
And here is your CBR
How many times do you have to take a burette reading?
3 times
1, 2, 3 times
OK
Now what is pilot reading?
Assume
Assume your CBR has come
That means you have performed the titration three times.
OK
You have performed the titration three times.
And every time you got
11.8
So
Your
Three readings
11.8
You fill here
OK
So your CBR
How much will come
11.8
How much will come?
CBR
11.8
OK
So what is pilot reading?
Your
11.8
Between whom
11.8
Between 11 and 12
11 to 12
Assume your
12.1
Between whom
Between 12 and 13
So how much will you keep?
12 to 13
Now what is initial
How much is it at the beginning?
When you begin performing titration
So in buret
How much is it in buret?
So it is 0
In our buret
The levels of cheminophore
What are they?
0
Difference
Subtract it from this
So you will get 11.8
11.8
So you can write it easily
Now comes your calculation part.
OK
So I tell you the calculation part
How to do
So you know
2 moles of chemiophore
React with
10 moles of
FeSO₄
10 moles of what
FeSO₄
Ammonium to
SO4
NH4 to SO4
0.8 H₂O
So you get
So what is it?
One will make
K₂SO₄
Because here is the SO4 group
So what will it make?
K₂SO₄
You can also remember
K₂SO₄
Plus Mn
Plus MnSO4
Plus Fe and SO4
So all the salts
It will make
OK
Plus once again you have
NH4 to SO4
Means whatever you see
Make a salt of all
With SO4
Plus 8 H₂O
OK
So you have to write it here
Now the calculation part
Guys, it's worth 1 mark
So you don't write
2 moles of KMnO₄
And 10 moles of FAS have been applied
So moles of KMnO4
moles of KMnO4
divided by
moles of
FAS, so how much KMnO4 did I get? 2
And how much was it? 10
If you deviate from this, it will be 1 out of 5
Look, did you do the cross multiplication?
5 moles of KMnO₄
is equal to
1 mole of FAS
Now
How much did I receive?
I am telling you once again
I've already made the videos for it.
Check out the calculation part of whoever you are going to.
I have designed this very well.
So how much did I get, huh?
How much did I get?
Because you took .1 of Mohr's salt
Just look at this.
You took .1 of Mohr's salt.
What on earth will happen?
0.1 into the volume of the Mohr's salt
So, what was the volume of the Mohr's salt?
You will take 10 ml.
You have 10 ml
So, just calculate it thoroughly.
MK is equal to 1 into
0.1 divided by 1 divided by 11.8
He will come here today at 5.
So, the molarity of KMnO4 should be written up to 4 digits after the decimal point.
And later you have to write the result; if you have forgotten to write the result
You will have to write: molarity of KMnO4 0.00 mol
So, one mark of yours will be deducted here.
So she will go to the battlefield and will suffer pain.
Understood... if you don't get it, please definitely rewatch the video once.
You'll definitely understand the collection part too tomorrow.
You have made videos on the topic of collaboration.
So, you didn't mention the salt, didn't explain the rest, and how did you write this? You must definitely watch the other video.
And fleece, fleece, fleece, fleece this channel thank you
