Recently Active Chemistry Questions

Match each of the compound given in column I with the correct rate of bromination given in column II. *Image* ...

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convert calcium carbide to ethane nitrile in 3 stpes ...

intermediate formed on reaction of phenol with CHCl3 in aq. NaOH ? ...

The total number of different kind of buffers obtained during the titration of H3PO3 with NaOH is __ ?? having a doubt b/w 2 n 1. ...

Zn salt is mixed with (NH4)2S of molarity 0.021 M.The amount of Zn2+ remains unprecipitated in 12mL of. this solution is --(Given KSP of ZnS=4.51 x 10-24) A. 1.687 x 10-22 g B. 1.767 x 10-20 g C. 2.01 x 10-23 g D. none of the ...

It is found that 0.1 M solution of three Na salts NaX,NaY,NaZ have pHs 7.0,9 and 11 respectively. Which of the following statement is/are correct ? A. The solution which has pH 7,the conjugate and HX of X- ,must be strong. B. ...

If pKb for fluoride ion at 25oC is 10.83,the ionisation constant of hydrofluoric acid in water at this temperature would be A. 1.74 X 10-5 B. 3.52 X 10-3 C. 6.75 X 10-4 D. 5.38 X 10-2 ...

what conclusion can we draw from arrehenius eqution regarding the temprature dependency on activation energy?? ...

compound X (C7H8O) is insoluble in water,dil HCl,aq NAHCO3 but dissolve in aq NaOH. When X is treated with Bromine water,it is converted into a compound of formula C7H7OBr. identify X ...

A crystalline solid C7H8Oreacts with sodium to liberate hydrogen gas.it is insoluble in water but soluble in dilute soln of NaOH,upon treatment with Br2,only one monobromo derivative C7H7OBr is produced.The most likely struct ...

MeoC[CH3]3 reacts with conc.hi product?/ ...

Which pair will show common ion effect ?? A. BaCl2 and Ba(NO3)2 B. NaCl + HCl C. NH4OH + NH4Cl D. AgCN + KCN ...

what is chromatic aberration??????? ...

COULD YOU PLEASE TELL ME SOMETHING ABOUT LIGAND, I ALSO WANNA KNOW ABOUT JOHN TELLER EFFECT. ...

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all alcohols which on oxidation form methyl ketone give +ve iodoform test ...

*Image* This question is quite easy,but i have a confusion in finding out which is the major product and which is minor! THANKS IN ADVANCE!!! ...

Q.2The percentage of p-character in the orbitals forming P--P bonds in P4 is------ (a)25 (b)33( c)50 (d)75 % ...

*Image* Give reason for the following In Cannizaro reaction , presence of electron withdrawing group ('R') increases the rate of reaction ...

what happens a) when sodium tertiary butoxide istreated with alcoholic KOH? b)chlorobenzene is heated with conc.H2SO4 ...

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it a q asked in jee 1995.. C6H5OCH3 + HI +HEAT GIVES,..... MY QUESTION is .....in the ans it is given we get cleaved product...but whn vinylic ether are treated wid HI...gives substituted product... ...

what wil be product.... a) phenol + HCN + hcl at 70° c.. b) acetophenone + HCOOOH -----A +HYDROLYSIS... ...

plz explain the exact meaning of pH value & for what purpose is it used? ...

someone please put forward with views on how to study inorganic chemistry in the minimum possible time !!!! ...

details of rosenmund reduction ! ...

what is the colour of *Image* ...

the oxidative ozonolysis of acetylene yields .......?(clue: there are 2 products) ...

Substitution of Chlorine takes place higher temp in A. CH3Ch=CH2 B. CH2=CH2 C. CH *Image* CH D. none of the above ...