List of top Chemistry Questions

The correct order in which the O—O bond length increases in the following is:
Which of the following molecules has trigonal planar geometry?

Which amongst the following is the most stable carbocation?

Names of some compounds are given. Which one is not correct in IUPAC system ?
The major organic product formed from the following reaction:
(i)CH3NH2 / (ii) LiAlH4 (ii) H2o
Which one of the following pairs represents stereoisomerism ?
At 25°C,the dissociation constant of a base, BOH, is 1.0 x 10-12. The concentration of hydroxyl ions in 0.01 M aqueous solution of the base would be:
The main reason for larger number of oxidation states exhibited by the actinides than the corresponding lanthanides, is :
Aniline in a set of reactions yielded a product D.
 
Aniline


The structure of the product D would be:

The mass of carbon anode consumed (giving only carbon dioxide) in the production of 270kg of aluminum metal from bauxite by the Hall process is: (Atomic mass Al = 27)
Which one of the following oxides is expected to exhibit paramagnetic behaviour ?
A solution has a 1:4 mole ratio of pentane to hexane. The vapour pressure of the pure hydrocarbons at 20°C are 440 mm of Hg for pentane and 120 mm of Hg for hexane. The mole fraction of pentane in the vapour phase would be
The mole fraction of the solute in one molal aqueous solution is:
H2S gas when passed through a solution of cations containing HCl precipitates the cations of second group of qualitative analysis but not those belonging to the fourth group. It is because:
The correct order of acid strength is
What is the correct relationship between the pHs of isomolar solutions of sodium oxide (pH1),sodium sulphide (pH2),sodium selenide (pH3) and sodium telluride (pH4)?

The energy of the second Bohr orbit of the hydrogen atom is -328 kJ mol-1; hence the energy of the fourth Bohr orbit would be:

Which one of the following alkenes will react faster with H2 under catalytic hydrogenation conditions?(R=Alkyl substituent)

Charles' law is represented mathematically as :
Which of the following silver salts is insoluble in water ?
, A will have configuration :
Which of the following is deliquescent ?
Incorrect statement for pyrophosphorus acid $H_4P_2O_5$ is :
Isopropyl bromide on Wurtz reaction gives :
Which gas has the highest partial pressure in atmosphere?