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Catalogs Discussion Forums -> Organic Chemistry -> end product of the following sequence of reaction is.... -> Go to message
This Post 20 points    (Olaaa!! Perrrfect answer.   in 4 votes )   [?]
8 replies   
final product will be malonic acid(propan-1,3-dioic acid)
 
first it will form MgBr CCH, then with (CO2/ H3O+) , it will form
 
HC C-COOH.
 
with HgSO4/H2SO4, it will form OHC-CH2-COOH
 
and further with Ag2O , it will oxidise to malonic acid ( HOOC-CH2-COOH )
Catalogs Discussion Forums -> Organic Chemistry -> Butanenitrile may be prepared by heating... -> Go to message
This Post 2 points    (Olaaa!! Perrrfect answer.   in 1 votes )   [?]
3 replies   
yup! from propyl chloride
because -OH group being poor leaving group can't be easily substituted by -CN group...
Catalogs Discussion Forums -> Mechanics -> statics!!! -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
4 replies   
pls sumbody reply!!
Catalogs Discussion Forums -> Thermal Physics -> thermodynamics!! -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
1 replies   
pls sumbody reply!!
Catalogs Discussion Forums -> Games, Puzzles and Quizzes -> GUESS-IPL INDIA -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
40 replies   
I m supporting two teams
 
DELHI DARE DEVIL
 
AND
 
KINGS XI PUNJAB
 
 
 
Catalogs Discussion Forums -> Mechanics -> statics!!! -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
4 replies   
A heavy uniform rod 15 cm long is suspended from a fixed point by strings fastened to its ends , their lengths are being 9 cm and 12 cm .If @ be the angle at which the rod is inclined to the vertical then find the value of sin@ ?
Catalogs Discussion Forums -> Thermal Physics -> thermodynamics!! -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
1 replies   
A diathermic cylinder filled with one mole of monoatomic gas with movable piston is submerged in boling water at 1 atm.then what will be the work done by d gas?
 
A)69.42 RJ
B) 0
C) 189.2 RJ
D) 285.5 RJ
Catalogs Discussion Forums -> Physical Chemistry -> phenol -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
2 replies   
I think its nearly 134.3

am I correct?
Catalogs Discussion Forums -> Mechanics -> What would happen to the time period of an oscillating bob if a small hole is made... -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
3 replies   
already answered

http://www.goiit.com/posts/list/0/mechanics-what-would-happen-to-the-time-period-of-an-oscillating-54734.htm#274008
Catalogs Discussion Forums -> Inorganic Chemistry -> what is methyl iodide? -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
3 replies   
I think its liquid because of large vander-wall attraction between molecules
Catalogs Discussion Forums -> Mechanics -> What would happen to the time period of an oscillating bob if a small hole is made... -> Go to message
This Post 7 points    (Olaaa!! Perrrfect answer.   in 2 votes )   [?]
4 replies   
see, as water level goes down, distance between centre of mass of bob and point of suspension increase, so length of pendulum increses..so its time period...but as soon as bob is empty, C.O.M is again at its original position, so time period then decreases.

Catalogs Discussion Forums -> Algebra -> AIEEE MATHEMATICS DOUBTS!! -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
4 replies   
thanx frnds....
and what abt 1, 4 , 5 and 7.
pls also try them
Catalogs Discussion Forums -> Mechanics -> What would happen to the time period of an oscillating bob if a small hole is made... -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
4 replies   
1) time period remains same...

2) time period finst increases than decreases....
Catalogs Discussion Forums -> Algebra -> AIEEE MATHEMATICS DOUBTS!! -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
4 replies   
1)A sphere fall from a height 16 m . If e = 7/9, then sphere will finish rebounding in how much time??
 
2)*******got answer of q 2***so removing it*******
 
3)find the coefficient of term independent of x in expansion of
 
   (1 + x + 2x2)(3x2/2 - x/3)9   ?
 
 
4) probability that when 12 balls are distributed among 3 boxes , the first will contain 3 balls is????
 
ans. given : 12C5.29/312   plz xplain..
 
5) Find d no. of ways of selecting 2 white squares on a normal chess board,so that they don't lie on same row or column??
 
answer given : 400
 
6)Find the no. of real solution of the eq. logex = IxI ??
 
7)The no. of words of 6 letters that can be formed  with letters of the word
 
 ABRAKADABRA   if the words begin and end with A??
 
answer given : 270 but me getting 370..
Catalogs Discussion Forums -> Physical Chemistry -> solve it -> Go to message
This Post 5 points    (Olaaa!! Perrrfect answer.   in 1 votes )   [?]
1 replies   
I think its 0.25 angstrom

R = k.n^2/Z

k = constant

n= orbit

Z = atomic no.
 
 
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