Transition metals combine with halogens ...

Transition metals combine with halogens at high temperature to form compounds called halides. On account of high activation energy , the reactions require high temperature to start, but once the the reaction is started , the heat of reaction is sufficient to maintain the continuity .
Metals in higher oxidation state form flourides as it is the most electronegative element . Flourides are ionic in nature . The chlorides , bromides and iodides have ionic as well as covalent character . Halides of metals is higher oxidation states are relatively unstable and hydrolysed very easily .
`DeltaH_(f)` is negative for

Flourides

Bromides

Iodides

All of these

Verified by Experts

The correct Answer is:

THE D AND F-BLOCK ELEMENTS
AAKASH INSTITUTE|Exercise Assingment ( Section-E Assertion- Reason Type Questions )|15 Videos
THE D AND F-BLOCK ELEMENTS
AAKASH INSTITUTE|Exercise Assingment ( Section-F Matrix-Match Type Questions )|3 Videos
THE D AND F-BLOCK ELEMENTS
AAKASH INSTITUTE|Exercise Assingment ( Section-D Linked Comprehension Type Questions ) Comprehension-I|3 Videos
Test-12
AAKASH INSTITUTE|Exercise Exercise|30 Videos
THE P-BLOCK ELEMENTS
AAKASH INSTITUTE|Exercise Assignment Section-J)|16 Videos

Transition metals combine with halogens at high temperature to form compounds called halides. On account of high activation energy , the reactions require high temperature to start, but once the the reaction is started , the heat of reaction is sufficient to maintain the continuity . Metals in higher oxidation state form flourides as it is the most electronegative element . Flourides are ionic in nature . The chlorides , bromides and iodides have ionic as well as covalent character . Halides of metals is higher oxidation states are relatively unstable and hydrolysed very easily . Aqueous solution of which compound will have pH lt 7 ?

`TiCl_(4)`

`FeCl_(3)`

`CuSO_(4)`

All of these

`H_(2)+F_(2)rarr2HF`

`H_(2)+Cl_(2)rarr2HCl`

`H_(2)+Br_(2)rarr2HBr`

`H_(2)+I_(2)rarr2HI`

`F_2 gt Cl_2 gt Br_2 gt I_2`

`Cl_2 gt F_2 gt Br_2 gt I_2`

`I_2 gt Br_2 gt Cl_2 gt F_2`

`Cl_2 lt F_2 gt I_2 gt Br_2`