Recently Active Chemistry Questions

Does kx depend on both temp. and pressure. (Here x denotes mole fraction) ...

A mixture of H2O(v), CO2 and N2 was trapped in a glass apparatus with a volume of 0.731 ml. The pressure of total mixture was 1.74 mm of Hg at 23°C. The sample was transferred to a bulb in contact with dry ice(-75°C) so tha ...

A graph is plotted between PVm along y axis and P along x axis,Vm is molar volume of real gas.Find intercept along Y axis. Please explain how you have solved it ! Answer is Pb+RT ...

can someone please explain the resonating structures for SO3... please explain the movement of electrons as well... thanks in advance...!! ...

When a mixture of NaBr and NaCl is repeatedly digested with H2SO4, all the halogens are expelled and Na2SO4 is formed quantitatively. With a particular mixture, it was found that the weight of NaBr-NaCl mixture taken. calcula ...

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In paper 1, chemistry section, there was one question on aromaticity. We were asked to select UNSTABLE molecules from the ones given at room temperature (Multiple correct). Why can't option A) (1,3-cyclohexadiene) also be the ...

The state of hybridisation of central atom in POCl3 is : 4+ 1/2 (5-5)=4→sp3 ....can anyone explain that formula in bold letters.... ...

An acid-base indicator (ka = 3 * 10-5 ) has red colour in acid form and blue colour in basic form . which is/are correct statements; (A) 75% red form will exist at pH = 4.05 (B) indicator will show red colour at pH = 3.53 (C) ...

Q) for a reaction activation energy = 0 and k= 3.2 s-1 at 300 K. the value of k at 310K = ? doubt: does activation energy vary with temperature.so wats the answer ...

hey guys could anyone explain how to find equvalent weight in reaction such as, example 1- 4KMnO4 + 5HC2O4.H2C2O4.2H2O + 13H2SO4 → 4MnSO4 + 9KHSO4 +20CO2 + 18H2O the equivalent weight of potassium tetraoxalate crystals are? ...

hey guys could anyone explain how to find equvalent weight in reaction such as, example 1- 4KMnO4 + 5HC2O4.H2C2O4.2H2O + 13H2SO4 → 4MnSO4 + 9KHSO4 +20CO2 + 18H2O the equivalent weight of potassium tetraoxalate crystals are? ...

Two solids components A and B dissociate into gaseous products at 20°C as i) A(s) → A'(g) + H2S(g) ii) B(s) → B'(g) + H2S(g) At 20°C pressure over the excess solid A is 50 mm Hg and that over excess solid B is 68 mm Hg. ...

1) Out of C6H5CH2Cl and C6H5CHClC6H5 which is more easily hydrolysed by aqueous KOH. (please explain whether it is SN1 or SN2 for each) 2) p-dichlrobenzene has higher or lower solubility than those of o- and m- isomers ? ...

An open vessel at 27°C is heated until the 3/5 of the moles of the air in it has been expelled. Assuming that the volume of the vessel remains constant, what is temperature to which the vessel has been heated. a) 27°C b) 30 ...

out of the following compds. all atoms are in one plane are; (A) c=c-c=c (B) c≡c-c=c (C) c=c=o (D) c=c=c (add hydrogens wherever necessary) ans = B,C JEE 2011 Q. how to do such Questions? ...

can any one help me how to determine whether there are ny peroxide linkage or not without knowing the structure of the particular compound ...

I know this might sound silly But can someone tell me how resistance is extensive? And molar conductivity intensive?? ...

The oxoanions of which element(in its highest oxidation state) shows least tendency to polymerise? A)B B)Cl C)S D)P doubts : on what factors does tendency to polymerize depend on?? ...

in the iodoform reaction of ethanol , the number of moles of base (naoh) consumed per mole of ethanol is? ans: 5 (how?) ...

*Image* Give all products : A - I Src: A boy calling himself a 'chemistry lover' via facebook. ...

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1)We know that geometrical isomers are exhibited by alkenes and not by alkanes.It is because of the fact that alkanes undergo rotation along the sigma bond.This ability is also responsible for the existence of conformers. But ...

If the reaction of a mixture of NaCN and benzyl bromide were run in twice the volume of the solvent, the rate of reaction would nearly be : a) same b) twice as fast c) 1/2 as fast d) can't say as the nature of reaction is unk ...

Can someone tell me how to Find the equivalent Molar Mass for disproportionation reactions? Eg. H3PO2→PH3 + H3PO4 ...

1.) 1L solution containing NH4Cl and NH4OH has OH- concentration 10-6 moles/litre. Which of the following can be precipitated when solution is added to 1L soution of 0.1M metal ions? 1.Ba(OH)2(Ksp=5x10-3) 2.Ni(OH)2(Ksp=1.6x10 ...

Q)In which of these compounds in there no hydrogen bonding? K2HPO4 K2HPO3 KH2PO3 CH3COOH What is the procedure for getting the answers? The structures of these compounds i have not come across in my study so is there any othe ...

For the dissociation reaction N2O4→2NO2 the degree of dissociation α in terms of Kp and total equilibrium pressure P.. ...

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