Q. 184.1( 31 Votes )
Why is dioxygen a gas but sulphur a solid?
Oxygen is smaller in size as compared to sulphur. Due to its smaller size, it can effectively form pπ –pπ bonds and form O2[ O = = O] molecule. Also, the intermolecular forces in oxygen are weak van der Wall’s, which cause it to exist as a gas.
On the other hand, sulphur does not form M2 molecule but exists as a puckered structure held together by strong covalent bonds. Hence, it is a solid.
Rate this question :
Why are halogens strong oxidising agents?NCERT - Chemistry Part-I
Write the reactions of F2 and Cl2 with water.NCERT - Chemistry Part-I
Which one of the following does not exist?
(i) XeOF4 (ii) NeF2 (iii) XeF2 (iv) XeF6NCERT - Chemistry Part-I
Arrange the following in the order of property indicated for each set:
(i) F2, Cl2, Br2, I2 - increasing bond dissociation enthalpy.
(ii) HF, HCl, HBr, HI - increasing acid strength.
(iii) NH3, PH3, AsH3, SbH3, BiH3 – increasing base strength.NCERT - Chemistry Part-I
Sea is the greatest source of some halogens. Comment.NCERT - Chemistry Part-I
Give two examples to show the anomalous behaviour of fluorine.NCERT - Chemistry Part-I
Write the formula of the compound of iodine which is obtained when conc. HNO3 Oxidises I2.Chemistry - Board Papers
A. Account for the following:
(i) Ozone is thermodynamically unstable.
(ii) Solid is ionic in nature.
(iii) Fluorine forms only one oxoacid HoF.
B. Draw the structure of
(ii)Chemistry - Board Papers