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How l prepare organic chemistry??? Isn't it is too hard.

Posted by Vijeta Kanwar 8 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Derive an expression for the loss of energy when 2 conductors at different pole into electrical contact account for this energy

Posted by Riya Khanna 8 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

SF6 is inert

Posted by Nidhi Kumari 8 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Nitin Murali 8 years, 2 months ago

The six fluorine atoms hinder the approach of reagents which make Sulphur atom less reactive due to which it is inert

ANSWER

In one months how to complete chemistry syllabus

Posted by Sourav Singh 8 years, 2 months ago

CBSE > Class 12 > Chemistry

8 answers

Divya Sen 8 years, 2 months ago

Class 12, biology

Divya Sen 8 years, 2 months ago

I m from bhilai,c.g.

Divya Sen 8 years, 2 months ago

Sorry i misunderstood u as one of my frnd's name is exactly as yours

Bhumi Jain 8 years, 2 months ago

Yaa I'm bhumi,Bhumi jain but who r u. I don't know you divya sen. How you come to know me. I'm from Calcutta Let it be... You are from which class and In which place do you live..

Divya Sen 8 years, 2 months ago

You are from which place bhumi??

Divya Sen 8 years, 2 months ago

Bhumika is this you???

Bhumi Jain 8 years, 2 months ago

I am also doing the same and now i am in the way of success..

Bhumi Jain 8 years, 2 months ago

Make a time table date wise to learn which all ch in which dates and follow it nicely.Learn two hours continuously without any break by sitting in one place only where you feel comfortable.

ANSWER

Why the enthalpy of atomisation of transition metals is quite high?

Posted by Akansha Tomar 8 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Nancy Jaiswal 8 years, 2 months ago

Becoz enthaply of atomisation is directly propotional to the no. Of unpaired electron so in transition metal it is quite high

ANSWER

Definition of fittig reaction

Posted by Shikha Singh 8 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Nitin Murali 8 years, 2 months ago

Halo benzene reacts with sodium metal in dry ether to form diphenyl

ANSWER

From which topics i will pass in chemistry

Posted by Ankit Godara 8 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Abhijeet Khandelwal 8 years, 2 months ago

Oranic

ANSWER

why phenol is more acidic

Posted by Vishal Rawal 8 years, 2 months ago

CBSE > Class 12 > Chemistry

2 answers

Vishal Rawal 8 years, 2 months ago

thanx

Rajat Raguvanshi 8 years, 2 months ago

Because it is having negative charge on oxygen in resonance and weakens the OH bond and thus facilitates the removal of electrons

ANSWER

How to learn the chemical reaction of p& d block

Posted by Ankita Nayak 8 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Pratham Chaudhary 8 years, 2 months ago

There are no shortcut..you can only learn by writing those equation and by practicing regularly

ANSWER

What is disproportion reaction??????

Posted by Ankita Nayak 8 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Yash Garg 8 years, 2 months ago

Those reactions in which reduction as well as oxidation both takes place of a compoud/molecule/element.

ANSWER

What is F centre???

Posted by Rahul Sharma 8 years, 2 months ago

CBSE > Class 12 > Chemistry

2 answers

Nikhil Shah 8 years, 2 months ago

The vacant place accquired by an ion

Menakshee Singh 8 years, 2 months ago

When an anionic vacancy is filled by an unpaired electron it is called f centre

ANSWER

Why H3PO2 has reducing nature

Posted by Ankita Nayak 8 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Deepa Chanwariya 8 years, 2 months ago

Because in H3PO4 , O.S. of phosphorus is +1 so it can only oxidise itself to +5 O.S and reduce other to their lower O.S

ANSWER

Void in hcp

Posted by Rahul Sharma 8 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What is F centre

Posted by Chinkee Jaatrana 8 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Abhishek Kumar Verma 8 years, 2 months ago

The position of electron in the crystal lattice is called F centre.

ANSWER

Explain brown ring test

Posted by Aditya Raj 8 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Saif Ansari 8 years, 2 months ago

That is not possible practically

ANSWER

why F form only oxoacid?

Posted by Ashwani Kondal 8 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Nitin Murali 8 years, 2 months ago

Non availability of d orbitals due to which it can form one oxoacid and not others

ANSWER

Atomic numbers

Posted by Hiranjit Longjam 8 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Chinkee Jaatrana 8 years, 2 months ago

No of proton equal to atomic no

ANSWER

Atomics number and Valency

Posted by Hiranjit Longjam 8 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What is dehydration reaction? State with example.

Posted by Saddam Ansari 8 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Sandesh Verma 8 years, 2 months ago

The removal of water is called the dehydration reaction

ANSWER

What is electrophoresis?

Posted by Shruti Mangal 8 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Ritu Gupta 8 years, 2 months ago

Electrophoresis is a process to confirm the presence of charge on the colloidal particles.

ANSWER

plzzz anyone tell me 16 ko practial kes sub ka hhgg

Posted by Nitika Thakur 8 years, 2 months ago

CBSE > Class 12 > Chemistry

6 answers

Saif Ansari 8 years, 2 months ago

I think Chemistry

Nitika Thakur 8 years, 2 months ago

then plzz tell me i will be very obliged uhhh

Nitika Thakur 8 years, 2 months ago

RRCS SAMLOH CBSE BOARD

Sandesh Verma 8 years, 2 months ago

Yes

Shivanshu Yadav 8 years, 2 months ago

What is your school name

Shivanshu Yadav 8 years, 2 months ago

Yes

ANSWER

why are crystalline solid anisotropic

Posted by Niki Th 8 years, 2 months ago

CBSE > Class 12 > Chemistry

2 answers

Priyanka Bohra 8 years, 2 months ago

Because it have both long range and short range order when seen in diffrent direction it have diffrent refractive index and other factor

Lalit Sharma 8 years, 2 months ago

because geometrical shape and long range order.

ANSWER

What happens when anaerobic condition is not maintained when fermentation takes place

Posted by Arman Toppo 8 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Priyanka Bohra 8 years, 2 months ago

Ethanol will be converted into ethanoic acid

ANSWER

Coordination number

Posted by Ganesh Dhiman 8 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Lalit Sharma 8 years, 2 months ago

Coordination Is a nearest neighbouring particles.

ANSWER

In electrophoresis why dm not moves

Posted by Ravinder Singh 8 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Why comet has a tail?

Posted by Raghav Gupta 8 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Sudhanshu Saumya 8 years, 2 months ago

A comet has some portion of ice in it. Due to continuous evaporation as it comes nearer to the sun the evaporating substances makes the formation of its tail.

ANSWER

Si unit of density

Posted by Shivanshu Yadav 8 years, 2 months ago

CBSE > Class 12 > Chemistry

2 answers

Sandesh Verma 8 years, 2 months ago

Kgm^-3

Chinkee Jaatrana 8 years, 2 months ago

Kg/ m3

ANSWER

Why are panta halide are more coolant try monovalent

Posted by Anuj Thakur 8 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Nitin Murali 8 years, 2 months ago

Pentahalides have +5 oxidation state while trihalides have +3 oxidation state.. Higher the oxidation state more the polarising power.. More covalency ( fajans rule refer class 11 chemical bonding)

ANSWER

Can.a student give comparing exam of 1 subject and whole subject from other board in same year..

Posted by Kumar Uddesh 8 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Saif Ansari 8 years, 2 months ago

Only the waste of time

ANSWER

Vapour pressure of water at 20 degree Celsius is 17.5 mmhg calculate the vapour pressure of water at 20 degree Celsius when 15 gram of glucose is dissolved in 150 gram of water

Posted by Vaishnavi Wagh 8 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

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