Part 04 | अन्तरा हैलोजन यौगिक | Inter halogen compounds p- ब्लाॅक तत्व | भौकाल Day - 5 By Vikram sir

In the inter halogen compounds of AB_3//AB_5 form which is correct:

The typical reaction of benzene and other aromatic compounds are electrophilic substitution. Presence of electron donating group activates the ring towards electrophilic substitution, while presence of electron withdrawing group deactivates the ring towards electrophilic substituion but at the same time activates the ring towards nucleophilic subsituion. Some groups are predominantly meta-directing and all of these are deactivating. Except halogen, most of the o- and p- directing groups are activating groups. underset(Delta)overset(C_(2)H_(5)Cl.AlCl_(3))rarr(A) major. A is trisubstituted benzene. The structure of A is :

The halogens have the smallest atomic radii in their respective periods. The atomic radius of fluorine is extremely small. All halogens exhibit -1 oxidation state. They are strong oxidising agents and have maximum negative electron gain enthalpy. Among halogens, fluorine shows anomalous behaviour in many properties: For example electronegativity and ionisation enthalpy are higher for fluorine than expected whereas bond dissociation enthalpy, m.p. and b.p.and electron gain enthalpy are quite lower than expected. Halogens react with hydrogen to give hydrogen halides (HX) and combine amongst themselves to form a number of compounds of the type XX', XX'_(3), XX'_(5) and XX'_(7) called inter halogens. What are the sizes of X and X' in the interhalogen compounds?

The halogens have the smallest atomic radii in their respective periods. The atomic radius of fluorine is extremely small. All halogens exhibit -1 oxidation state. They are strong oxidising agents and have maximum negative electron gain enthalpy. Among halogens, fluorine shows anomalous behaviour in many properties: For example electronegativity and ionisation enthalpy are higher for fluorine than expected whereas bond dissociation enthalpy, m.p. and b.p.and electron gain enthalpy are quite lower than expected. Halogens react with hydrogen to give hydrogen halides (HX) and combine amongst themselves to form a number of compounds of the type XX', XX'_(3), XX'_(5) and XX'_(7) called inter halogens. Why fluorine shows anomalous behaviour as compared to other halogens?