Physics, Chemistry, Mathematics Forums

what is the force law that exists between the nucleus , just like the coulomb's law that exists between the atoms??

What is the  natural force center for nuclueus??

Do we have SCHRODINGER'S EQUATION in our IIT-JEE 2007 syllabus?

what are the resonating structures of Quinone??

Does it have any??

1.C6H5COOH(in the para position-SO3H).Is it 4-sulpho benzoic acid (or) 4-carboxy sulphonic acid (or) 4- sulpho benzene carboxylic acid.

2.can anyone explain the baics of Keto-Enol tautomerism(Desmotropism)

3.the co-ordination number of Ni²⁺ is 4.

Nicl₂+KCN(excess)---->A(cyano complex)

Nicl₂+conc.Hcl(excess)--->B(chloro complex)

What is A and B. Can anyone explain me plz.....

I came across this ques. in many books and i'm not satisfied with the answer given. Plz help.
Q. Maximum enolisation will take place in :
a) CH₃COCH₃
b) CH₃COCH₂CHO
c) CH₃COCH₂COCH₃
d) Cyclohexa-2,4-dien-1-one

The answer i thought was c) as it has to keto groups and so will be able to maximise enol form. But the answer given is d) in which acc. to me enol will be highly unstable due to formation of cumulated diene.

Plz give the correct explanation.

Hi,

    What do you mean by POTENTIAL BARRIER in alpha decay(nuclear physics). what is the role of it.Why it can't be surmounted.What is the effect of the barrier on the alpha particle.

What do you mean by NUCLIDIC CHART? 

Why the alpha particle is not immediately emmited from ²³⁸U nucleus.

Can anyone explain this pls......

Hi friends,

       How do you prepare N,N-diethyl-m-toluamide from m-bromotoluene

I came across this question in my courseware. It is known that para-dihydroxybenzene is polar. Explain?

Any help with this?

anyone pls reply to my questions which is listed below.

I need  answers to those questions. Pls reply to it with appropriate and precise answers

if the natural numbers are grouped as (1,3) (5,7,9,11) (13,15,17,19,21,23)....

the sum of the numbers of the nth group is-