11hey.. cud ne 1 give da mechanism 4 dat.. plz
hi evrione in this forum i will try to put some imp chem Q on a regular basis most of the q will be thought provoking & conceptual but please do tell if they are too easy
i will add the Qs in the second post and other things in 5th post
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33 Answers
1arey hain a part ka ans allyl iodide nahi hai i m sry jaldibagi mein galat cheez dekh lee
1in q u will not be given eqivalents do it with given data they r easy u can do it u r on rite path try a little more else i will giv u the equi for b part
21yah!
precisely wat akshay says!!
nice initiative vish!!
keep 'em cumin!!! :)
raise the diff level still [4] [3] [1]
1yup rite ans cheers thanks tapan i will still try to further inc the level [4]
1hey evry1 i will also put some imp tips and facts related to Q in this forum [1]
FACT1: lapis lazuli is rare mineral having blue colour .Ultramarine is an artificial lapis lazuli.It's a complex of silicate of sodium and aluminium containing 12% sulphur.
39yeh sab jee mian hain? by god i am hearing this name first time in my life
1not in jee i m sure but can be in aieee and dce (maybe) nothing harmful in gaining knowledge.[1]
1this is gud too may be moast of u know it ............. still
FACT2: HUME ROTHERY RULE for complete miscibility
1. the 2 metals must be similar in size .Their metallic radius must not differ [by more than 15%
2. Both metals must have the same crystal structure.
3. the chemical properties of the metals must be similar .In particular the number of velency electrons should be the same.
1this one is a Q + fact[1]
Q4 : It's an experimental fact that Cs2[CuCl4] is orange coloured but (NH4)2[CuCl4] is yellow.It's further known that total paramagnetic moment of an unpaired electron is due to spin as well as due to nature of orbital , d-orbital contributing more than s or p.Thus the total paramagnetic moment of orange compound is found to be more than that of yellow compound.than which one is correct?
a)anion of orange compound is tetrahedral and that of yellow is square planer.
b)anion of orange compound is square planar and that of yellow is tetrahedral.
c)both the anions are tetrahedral
d)both the anoins are square planar
1Q1 Barium titanate crystallizes in perovskite structure which is a cubic lattice . with Barium ions occuping the corners of unit cell , oxide ions occupying the face centres and titanium ions occupying centres of the unit cell . if Ti4+ion is described as occupying the holes in Ba-O lattice , the type of holes and fraction of these ions are ?? -------->( answered )<--------------------------
Q2 at room temperature ( 200C ) milk turns sour in about 64 hrs . in a refrigerator at 30C milk can be stored 3 times as long before it sours. what will be the activation energy of the reaction that causes the souring of the milk ??
-------->( unanswered)<------------------------------------------
Q3 on heating glycerol with excess amount of HI , the product formed is ??
also tell the product when HI is used in small amount ?
-----------------> (answered)<--------------------------------------------
Q4 : It's an experimental fact that Cs2[CuCl4] is orange coloured but (NH4)2[CuCl4] is yellow.It's further known that total paramagnetic moment of an unpaired electron is due to spin as well as due to nature of orbital , d-orbital contributing more than s or p.Thus the total paramagnetic moment of orange compound is found to be more than that of yellow compound.than which one is correct?
a)anion of orange compound is tetrahedral and that of yellow is square planer.
b)anion of orange compound is square planar and that of yellow is tetrahedral.
c)both the anions are tetrahedral
d)both the anoins are square planar
------------------> (unanswered)<-------------------------------------------------
39sorry, i was thinking of HIO4. jara dimmaag hil raha hain. in that case i am right na?
1mathie i dont want to say this but your answer is not anywhere near
these were not even in the options
1this is a gud Q
*** edited i hav made it bit clearer to think
Q3 on heating glycerol with excess amount of HI , the product formed is ??
also tell the product when HI is used in small amount ?