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Catalogs Discussion Forums -> Physical Chemistry -> thermochemistry reaction between strong acid and base -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
9 replies   
well X4
then can base and water formed not react and is dere reaction is not exothermic

as per my knowledge both acid and base ( of active elements) combine with H2O to liberate H2
so wats the difference
Catalogs Discussion Forums -> Physical Chemistry -> thermochemistry reaction between strong acid and base -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
9 replies   
but friends

considering the equivalents concept equal equivalents of acid react wid those of base and hence equal moles of water shud b formed

hence all should release equal amount of heat

thats my explanation to dis problem

plzzz xplain where i went wrong if at all
Catalogs Discussion Forums -> Physical Chemistry -> rate -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
9 replies   
yep
the reaction is a zero order reaction coz the rate does not change wid time as is the case wid zero order reactions

and well its experimental data and human error are bound to happen hence 2.81=2.79=2.8
Catalogs Discussion Forums -> Organic Chemistry -> HELP plzzzzzzzzz -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
8 replies   
hey friends
can someone please list down all the selective reducing or oxidising agents and the groups that these compounds reduce or oxidise

this would b helpful to all and i would surely b grateful of u
Catalogs Discussion Forums -> Inorganic Chemistry -> why is SiCl4 is soluble in water while CCl4 is insoluble? -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
5 replies   
STI
   
there cannot be hydrogen bonding in this case because Cl is too big to have h bonding

the answer to it is associated with energy concept thts for sure
Catalogs Discussion Forums -> Physical Chemistry -> Tough questions need from Chemical Bonding -> Go to message
This Post 7 points    (Olaaa!! Perrrfect answer.   in 2 votes )   [?]
14 replies   
the answer to ur query is stru 4
this is because even in structure 3 some stability can b imparted due to non polar nature of stru (only for 4 f ) but structure 4 is a polar structure

one of the rule of thumb is
POLAR STRUCTURE ARE LESS STABLE THAN NON POLAR ONES
Catalogs Discussion Forums -> Inorganic Chemistry -> why is SiCl4 is soluble in water while CCl4 is insoluble? -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
5 replies   
well i am not too sure (as u cannot b wid chem)

but the SiCl4 exist as crystal and for a substance to dissolve the hydration energy should exceed the sum of lattice energy + ionising energy

CCl4 is a non polar substance it has high ionisation energy but it does not exist as lattice structure and its lattice energy is quite low
Catalogs Discussion Forums -> General -> raja ka khjana " formula of maths " -> Go to message
This Post 7 points    (Olaaa!! Perrrfect answer.   in 2 votes )   [?]
54 replies   
cos(a+b) = cosa.cosb-sinasinb


Community shelf Community shelf -> Situations Where "OH SHIT" Is Considered Appropriate ...... -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
33 replies   
aaaaaaaaaaaaaaaaaaaaawesssssssssssssomeeeeeeeeeeeeeeee
excellent pics
Catalogs Discussion Forums -> Organic Chemistry -> WHAT IS CARBOCATION? -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
6 replies   
hey mukulss please answer

is what i said right

Catalogs Discussion Forums -> Organic Chemistry -> WHAT IS CARBOCATION? -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
6 replies   
hey can u explain the order of stability

i just wanna check if it is due to hyperconjugation
Catalogs Discussion Forums -> Games, Puzzles and Quizzes -> game Guys v/s Gals -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
755 replies   
84
Community shelf Community shelf -> You want to become super successful...??? -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
20 replies   
very inspiring
Catalogs Discussion Forums -> Lounge -> abdul kalam or pratiba patil -> Go to message
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29 replies   
no answers but just MR abdul kalam

he has got no comparisons  at least from amongst  all the presidents  of  india up to date
Catalogs Discussion Forums -> Games, Puzzles and Quizzes -> game Guys v/s Gals -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
755 replies   
84

 
 
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