-
pls tell the product... 1. Mg/ ether (excess) __________________ o-Bromobenzyl bromide ? 2. H2O ...
-
how to find the no. of sigma bonds in P4O10 and what will be it's structure? what will be the no. of structural isomers of the formula C4H10O? how it is done? what is the no. of isomers for the compound with molecular formula ...
-
pls tell the product... 1. Mg/ ether (excess) __________________ o-Bromobenzyl bromide ? 2. H2O ...
-
(y3-2x2y)dx + (2xy2 - x3)dy =0, then the value of xy√(y2-x2) is 1. y2 +x 2. xy2 3. any constant 4. none of these ...
-
Ques1) The value of lim x→0 { cos (m2+n2) x } mn / (m2+n2)x (a) e mn (m2+n2) (b) e- mn (m2+n2) (c) e- mn/2 (m2+n2) (d) e mn/2 (m2+n2) Ques2) lim x→0 [sin -1 x / tan -1 x ] , whre [.] denotes the greates integer function ( ...
-
whats the formula that gives the no of stereoisomers a compound will form??? for the following tell the no. of stereoisomers H3C(OH)HC-CH=CH-CH(OH)CH3 ...
-
A ship travelling at 10m/s. A dolphin at 5 m/s along a line parallel to that of the ship and at a distance of 30m from it. The visibility is 50 m.Find the maximum time for which the dolphin will be visible from the ship. The ...
-
*Image* ...
-
*Image* ...
-
Guys, provide here the easiest and shortest way to convert Chlorobenzene to phenol. Burning Desire answered this once.. but I'm still not able to understand the reason ...
-
*Image* ...
-
Two pitch balls are charged by rubbing against each other. They are suspended from a horizontal rod through two strings of length 20cm each, the separation b/w the suspension point being 5cm. In equilibrium, the separation b/ ...
-
There are n numbered seats around a round table.In how many ways can m(<n)persons sit around the table ? ...
-
can there be covalent interaction between orbitals of the metal and ligand in coordination compounds?????????explain briefly ...
-
What is the difference between polydenticity and chelation? ...
-
Why is boric acid a weak acid? ...
-
Explanation reqd for the following statements: 1)"It is due to the absence of the d-orbital that the maximum covanlce of Boron is 4" 2)"Borax(Na2B4O7.10H2O)is said to contain the tetranuclear units[B4O5(OH)4]2- and correct fo ...
-
1.A substance that will deliquesce in the normal laboratory atmosphere is: (a) Cuso4 (b) NaOH (C) SiO2 (d) All of these ...
-
In in formation of the metal carbonyl compounds the dipole moment of the CO group should be considerable regarding the electronegativity difference of C and O but on the experimental basis the dipole moment comes out to be 0. ...
-
1) Find the values of a for which the eqn 3x4 + 4x3 -12x2 + a = 0 are real and distinct. 2) If f ' (sinx) < 0 and f '' (sinx) > 0 for x belonging to R, then find the intervals of monotonicity of the function g(x) = f(si ...
-
Let f:R→R such that for all x,y belongs R *Image* where n belongs N.Prove that f(x) is a constant function. ...
-
Pick up the molecule which has zero dipole moment- (a)NH3 (b)H2O (c)BCl3 (d)SO2 ...
-
I'm a IX student. Will please tell me that though Hydrogen has a great similarity with the properties of elements of the Halogen Group, why is it placed in the Ist group of the Periodic table? ...
-
The molecules that will have dipole moment are: (a)2,2-dimethylpropane (b)trans-2-pentene (c)cis-3-hexene (d)2,2,3,3-tetramethylbutane ...
-
Bond angle is minimum for: (a)H2O (b)H2S (c)H2Se (d)H2Te ...
-
Specify the coordination geometry around and hybridisation of N and B atoms in a 1:1 complex of BF3 and NH3 (a)N:tetrahedral,sp3;B:tetrahedral,sp3 (b)N:pyramindal,sp3;B:pyramindal,sp3 (c)N:pyramindal,sp3;B:planar,sp2 (d)N:pyr ...
-
A: Aldehydes and ketone give nucleophilic addition reactions with carbon,oxygen,nitrogen and sulphur nucleophiles R: Sulphite ion is ambident nucleophile ...
-
The molecules that will have dipole moment are: (a)2,2-dimethylpropane (b)trans-2-pentene (c)cis-3-hexene (d)2,2,3,3-tetramethylbutane ...
-
Q. how would we prove that that the following statement is wrong n+n+n......n times = n2 differentiatng both sides w.r.t n we get 1+1+1+.....n times = 2n or n=2n or 1=2 ...
-
For an ideal binary solution with PA0> PB0,then which relation between XA and YA is correct a) XA=YA b)XA >YA c)XA < YA d)XA/XB<YA/YB ...
