or
EU 5 Series
Recent Writer
Swarup Khatiwada
Recent Writer
Ishan
Recent Writer
Rabin Kalikote
Recent Writer
Prashiddha Bista
Recent Writer
Post Question Create Note Let's MCQ
NANDANI KUMARI • asked a question

Answer the following:

 (i) Transition elements form interstitial compounds.

(ii) Mns+(3d4) is strongly oxidising, whereas Cr2+(3d4) is strongly reducing.

(iii) Transition metals have high melting...

II)Cr2+ is reducing agent as its configuration changes from d4 to d3, when it is oxidized to Cr3+ .The d3 configuration have a half-filled t2g level which is very stable. On the other hand, the reduction of Mn3+ to Mn2+ results in the half-filled (d5) configuration which has extra stability hence Mn3+ acts as oxidizing agent.
0 Thanks
3 Answers
Answer Thread
Arya Jha • asked a question

Using bisection method, find the root of the equation f(x)=x2 -6logx-3=0(2<=x<=3)'correct to 4 decimal places with an accuracy of 10 -2 .

Here, f(x)=x2 -6 logx-3=0

f(2)=4-6 log2-3=-0.806

f(3)=9-6 log3-3=3.1373

f(2).f(3)=-0.806*3.1373=-2.529422 which is negative.

Hence, the root lies between 2 and 3

c0 =(2+3)/2=2.5

f(2.5)=6.25-6 log 2.5-3=0.8623

Now

n
 a(-ve)
 b(+ve)
 cn
 f(cn)
0
 2
 3
 2.5
 0.8623
1
 2
 2.5
 2.25
 -0.050595
2
 2.25
 2.5
 2.375
 0.38664
3
 2.25
 2.375
 2.3125
 0.1631658
4
 2.25
 2.3125
 2.28125
 0.05506
5
 2.25
 2.28125
 2.265625
 0.001925

From the table,

f(2.265625)=0.001928<10-2

Therefore, the...

0 Thanks
2 Answers
Answer Thread
Aryan Sigdel • asked a question

what's the difference between pass by reference and pass by value?

This picture develops a clear understanding.


8 Thanks
2 Answers
Answer Thread
Atith Adhikari • over 2 years ago

We got this question in the examination yesterday,

"Shed some insight into the play's depiction of the chakari or trash practice; the profession is one of the most important aspects of a person's existence. You have ever noticed that some individuals do chakari or trash that is just done for a momentary benefit - be it private or public organizations, while others have faith in their knowledge, talent, and aptitudes and get name,...

5 Claps
0 Comments
Comment Read
Kaushal Ghimire • almost 3 years ago

The Moon

Silent and still, the moon shines bright
In the dark, clear sky
Peaceful and calm, the night
A soothing balm to the weary eye

The moon, a glowing orb of light
Illuminates the path ahead
As the night wind whispers through the trees
And the stars twinkle overhead

So let us lay down and rest
And let the moon and night provide
The peacefulness and solitude
That we all need to feel alive

9 Claps
0 Comments
Comment Read
Diwas Pandit • asked a question

How many components can be realized of a vector?

Any vector directed in two dimensions can be thought of as having two different components. The component of a single vector describes the influence of that vector in a given direction.

2 Thanks
2 Answers
Answer Thread
Rabin Kalikote • 10 months ago

If we follow each other at Ask Mattrab, you will read this at some point. How are you?

2 Claps
1 Comments
Comment Read
Surakshya Pandey

very fine!

Reply 6mo
Rabin Kalikote

Glad to hear, miss!

6mo

Mattrab Community

Create, share and learn from the unlimited notes, photos and videos and ask your questions, answer your friends all over Nepal and grow. Create, share and learn.

Watch about Mattrab

Ask Mattrab is changing soon

We are excited for you to try new features. What are you excited about?

Close Open App