Hello Vikas.. 

Thanxx for the query but kindly elaborate the question by mentioning the class for which you need the refresher so we could help u better.. 

In order to score good marks in JEE Main you have to focus in all the subjects equally.

It is very important to clear your concepts and to build strong fundamentals to score good marks. You can take help of NCERT books for your preparation

To get good marks in

There are many central , state , Deemed universities in India but the best universities  are: Delhi University, Delhi

Jamia Millia Islamia,

JwaharLal Nehru University,

Lovely Professional University Jalandhar 

University of Pune,

Dr.Bhim Rao Ambedkar University, Agra

Banaras Hindu University

Anna University

Christ University,

Savitribai Phule University

The Maharaj Sayaji

Chemistry is scoring subject in JEE Main.

You can start your preparation by NCERT books to work on your concepts and to build your fundamentals strong.

Solve all the exercises which are given in NCERT books you can also solve NCERT exemplar for your practice.

Solve previous year papers to

Hi Rabbani,

You can join CSIR NET SLET Coaching classes at GATEIIT. GATEIIT will help you to clear the exam and then you can do P.Hd with stipend every month you will get from government.

P1V1=nRT

P2V2=n'RT

• n=dV1/M1 (d=density) ..............(1)
• n'=d'V2/28
• d=2*d'

(1) becomes

n=2*d'V1/M1;

P1V1=(2*d'V1/M1)*RT .................(2)   {V1 gets cancelled}

P2V2=(d'V2/28)*RT.......................(3)   {V2 gets cancelled}

taking  (2)/(3):

P1/P2=(2/M1)/(1/28)

->2/4=56/M1

->M1=112g mol^(-1)

hi abhijit, you still have 5 months time and if you work smart, you can really score well easily, i will tell you how to prepare 

Physics and chemistry- physics is considered one of the toughest subject for medical aspirants,but very interesting. choose any good book of your convinience, there