Recently Active Chemistry Questions

for a liquid normal boiling point is 351 K statement: at 351 K and 2 atm pressure , change in gibbs energy ΔG is positive. true or false? and why ...

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?? ...

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 presence of external magnetic field d-orbitals are a)3-fold degenerate b)5-fold degenerate c)7-fold degenerate d)non-degenerate e)none of these answer in the key was (d) or (e) ..(i don't remember!!!) why is the answer not ...

The molal lowering of vapour pressure of a liquid is 1.008 mm Hg at 25oC in a very dilute solution containing non volatile solute.The vapour pressure of the liquid at 25oC is 'A'x10 mm Hg.The value of 'A' is...... [ Integer t ...

1. ARRANGE IN INCREASING LATTICE ENERGY LiCO3 , Na2CO3 , K2CO3 2. COMPOUND WITH HIGH LATTICE ENERGY : LiF OR LiBr (reasons also plz) ...

i'm talking about the problem 8.5 (page 264) it is asked to find the species which do not show dispropotionation among ClO-,ClO2-,ClO3-,ClO4- . And also write reactions.... first Q is easy ....but how to write the reactions ? ...

at 300K vapour pres. of pure benzene and pure tolune are 100mm and 30mm of Hg rep. also they form ideal soln.a soln. of benzene and tol. is prep. by mixin 3 mole of tolun in 2 moles of benz. at 300K. 1)at wht external pressur ...

the relative humidity of air at any day is 50% and saturation vapuor pressure at 300K is 3.6 kPa. the amount of water vapours pers litre of air at 300K is? ...

bleaching powder reacts with iodide ion according to the following unbalanced equation OCl- + I- + H+ --------> I2+Cl- + H2O A 0.6 gram sample of bleaching powder requires 35.24 ml of 0.1084 N Na2S2O3 to titrate the libera ...

how do we infer which of the following disproportionate in aqueous solution; NO2 , N2O5 , N2O3 , Cl2O6 , ClO2 , Cl2O7 , SO2 , SO3 , P4O10. ...

which of the following is the non polar species? a- AsO3-1 b- SO3-2 c- ClO3-1 d- NO3-1 guys how to solve it? ...

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When it comes to electronic configuration if Cr is an exception then why not carbon? see the image below *Image* ...

1) what is the hybridisation state of central atom in the cationic part of the solid form of XeF6? (A) sp3 (B) sp3d2 (C) sp3d (D) dsp2 [please don't google. i have the answer but didn't get it myself..so jus wanted to check h ...

It is well known that, "Neil bohr failed in his model in which he described an electron as a charged particle moving in well defined circular orbits about the nucleus." However he failed because of the two major reasons.. a) ...

Can anyone tell me whcih mechanism u need to know for jee in organic chem in aldehydes and ketones just the names would do enough . Thank you ...

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q) 105 mL of pure water (4°C) is saturated with NH3 gas, producing a solution of density 0.9 g/mL. If this solution contains 30% NH3 by weightt , calculate its volume. (Ans. 166.67 mL) ...

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What to do and what not to do in the last month before IIT-JEE http://www.youtube.com/watch?v=Z5-AfiJxjOc&context=C4acfebbADvjVQa1PpcFMQX-FKsRHXxJDA7RTt_k4sN1NL6Iapsuo= ...

What to do and what not to do in the last month before IIT-JEE http://www.youtube.com/watch?v=Z5-AfiJxjOc&context=C4acfebbADvjVQa1PpcFMQX-FKsRHXxJDA7RTt_k4sN1NL6Iapsuo= ...

Which of the following are non-polar species ? a)AsO3- b) SO32- c)ClO3- d) NO3- Ans: A,B,C plz explain. ...

Indicate which compound in each of the follpwing will react faster? Neopentyl iodide or 1-iodopentane with CH3OH CH3S- or CH3O- with ethyl bromide in ethanol. ...

The molal lowering of vapour pressure of a liquid is 1.008 mm Hg at 25oC in a very dilute solution containing non volatile solute.The vapour pressure of the liquid at 25oC is 'A'x10 mm Hg.The value of 'A' is...... [ Integer t ...

Q: CsCl has BCC structure in which Cs atoms occupy Body Center and Cl the corner sites. If density is 3.99 g/cc , Calculate : a) The length of edge of Unit Cell b) The distance b/w Cs+ and Cl- ions Answers not matching ...

At 298K, the thermal expansion coefficient and the Isothermal compressibility of liquid water are \beta =2\times 10^{-4} \;\;\text{K}^{-1} and \kappa =4\times 10^{-6} \;\;\text{bar} respectively. Then, \left(\frac{\partial \t ...

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Q: A Zero order reaction would defnitely be : a) Elementary b) Complex In previous they had given complex (In which i had ticked elementary) as answer.. now in this they give elementary (In which i ticked complex) as answer?. ...