@GaurangTandon I have indeed been asked the same question without any values in the jee mains based paper
@GaurangTandon and for finkelstein , you're talking about fluoride acting as a leaving group , which is possible , but not feasible. $F^{-}$ is the weakest leaving group among all halogens .
@GaurangTandon Try for yourself, but I don’t think so. The space will be ignored; a thin space can be added using \;. codecogs.com/eqneditor is useful for testing.
Hey guys can you talk me through on how to decide the critical volumes , temperatures of certain gases , without knowing the values of critical constants ?
This, anecdotally, seems to come from the more academically orientated users. For some reason, protection of the Sacred Brotherhood of Chemists involves the odd poke at the new initiate. We were all there once, but the PhD/post-doc crowd like to laud their "knowledge" over less experienced pra...
see, T_c is the temp above which the gas cannot be liquefied; higher T_c => higher energy being supplied by the surrounding to break the molecules's intermolecular forces (IMFs). Now, since H2O has better IMF than NH3, so T_c of water is higher
@Tanuj i mean whichever are there; in noble gases and non-polar molecules you have those london dispersion forces, in polar molecules you have dipole dipole interactions; in water and ammonia you have H-bonding; all these are IMFs
critical pressure is the pressure that needs to be applied at critical temperature to liquefy 1 mole of gas; again, since H2O has higher IMF than NH3, its P_c is also higher
now that two people agree that the answer is CD, you must accept that your answer key is wrong; and if you wanna challenge then you gotta post the question on main ;)
@Tanuj i know their hw-policy can be off-putting sometimes but if you phrase your question neatly enough you'll definitely get an answer if you include all your working
@Tanuj if you have to bring the point A at rest (which has velocity = 2v rightwards) you have to subtract that 2v from the velocity of com (which is v rightwards)
if you do that you'll get v_com = v leftwards
and this situation (with the pivot point A above center) is now identical to the one when the ring was rolling rightwards (with the pivot point B below center)
since both are clockwise
by pivot point I mean instantaneous axis of rotation
$$\ce{Ca^2+}$$
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T
$$\ce{color}{red}{Ca^2+}$$
Can't figure out the color thing as of now
did this work
Google
Some good links
For me and if some new users happen to pass by
https://stackoverflow.com/editing-help
https://mhchem.github.io/M...
How do I theoretically predict the acidity order of the following para-halophenols?
(experimental $\mathrm{p}K\mathrm{a}$ values beside each)
parafluorophenol (9.92)
parachlorophenol (9.41)
parabromophenol (9.17)
paraiodophenol (9.30)
At first, I thought of simply using the -I effect to deter...
In order to attain stability $\ce{AlCl3}$ dimerises to $\ce{Al2Cl6}$ whose structure is depicted as:
I want to understand why one of the bond angles is $79^\circ$ and the other $118^\circ$. Is it possible to justify this using Bent's rule?
@Abcd dude it was the easiest from entire past five years; i was amazed how straightforward it could really get; they didn't try to twist any problem even by a small degree
entire class was really happy
i myself finished half hour before, with extra questions attempted and doubled revision
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This, anecdotally, seems to come from the more academically orientated users. For some reason, protection of the Sacred Brotherhood of Chemists involves the odd poke at the new initiate. We were all there once, but the PhD/post-doc crowd like to laud their "knowledge" over less experienced pra...
$$\ce{Ca^2+}$$
Gshdbdbjsisjsbdhhjsbsbshdvdvsjdjdjj$\ce{Ca^2+}$t
T
$$\ce{color}{red}{Ca^2+}$$
Can't figure out the color thing as of now
did this work
Google
Some good links
For me and if some new users happen to pass by
https://stackoverflow.com/editing-help
https://mhchem.github.io/M...
Sources: the official FAQ and blog posts.
See also the official privileges page for bounties.
What is a bounty?
A bounty is a special reputation award given to answers. This feature was designed to motivate answerers, and help questions get the answers they deserve.
Bounty awards are ...
The Periodic Table
The Periodic Table