611.Discuss the anamolous behaviour of fluorine among the halogens. Give reason also.
212 Views
612.Discuss the general characteristics of Group 15 elements with reference to their electronic configuration, oxidation state, atomic size, ionization enthalpy and electronegativity.
643 Views
Short Answer Type
613.Assign reasons for the following: Ammonia (NH3) has greater affinity for protons than phosphine (PH3).
614.Assign reasons for the following: The negative value of electron gain enthalpy of fluorine is less than that of chlorine.
Fluorene has low electron gain – enthalpy than chlorine due to its small size and high electron density so that the addition of any extra-electron increases electron-electron repulsion. on other hand chlorine is larger in size and also have d orbital , so it easliy accomodate extra electron.
177 Views
Advertisement
Advertisement
615.Assign reasons for the following: SF6, is much less reactive than SF4.
426 Views
616.Assign reasons for the following: Of the noble gases only xenon is known to form well-established chemical compounds.
190 Views
Long Answer Type
617.
Discuss the favourable conditions for the manufacture of (i) ammonia by Haeber's process and (ii) sulphuric acid by contact process.
458 Views
618.
Draw the structures of the following: (i) PCl5(g) (ii) S8(g) (iii) ClF3(g).
344 Views
Advertisement
Short Answer Type
619.Complete the following chemical reaction equation: F2 + H2O → ________
137 Views
620.Complete the following chemical reaction equation: Ca3P2 + H2O → __________
Long Answer Type
Short Answer Type
Switch
