halides

Halides - Group 15 elements form two series of halides of the type MX 3 , (trihalides) and MX 5 , (pentahalides). The trihalides are formed by all the elements while pentahalides are formed by all the elements except nitrogen. Nitrogen cannot form pentahalides due to the absence..

Group 15 elements form two series of halides of the type MX 3 , (trihalides) and MX 5 , (pentahalides). The trihalides are formed by all the elements while pentahalides are formed by all the elements except nitrogen. Nitrogen cannot form pentahalides due to the absence of vacant d-orbital..

The elements of this group form a variety of halides. The important features regarding the halides are: (i) Since fluorine is more electronegative than oxygen, its compounds with oxygen are called fluorides. For e.g., F 2 O is written as OF 2 and is named as oxygen difluoride. H..

Since fluorine is more electronegative than oxygen, its compounds with oxygen are called fluorides. For e.g., F 2 O is written as OF 2 and is named as oxygen difluoride. However, chlorine, bromine and iodine are less electronegative than oxygen, therefore, the compounds of these halogens wit..

The most important acyl halides are acyl chlorides because they are more easily prepared, more stable and less expensi..

Alkali metals combine readily with halogens to form ionic halides M + X - . For example, Reactivity of alkali metals with halogen increases down the group because of corresponding increase in electropositive character (decrease in ionization energy). All metal halides are i..

Alkyl halides on treatment with ethanolic solution of sodium cyanide or potassium cyanide give alkyl cyanide..

Al, Ga, In and Tl react with halogens to give binary halides. All the halides of group 13 elements are known except Tl(III) iodide. The fluorides are ionic and have high melting points. The chlorides, bromides and iodides are essentially covalent compounds with low melting poin..

Alkyl halides on treatment with ethanolic solution of sodium cyanide or potassium cyanide give alkyl cyanides. ..

Alkaline Earth metals combine with halogens at higher temperatures to form halides. ..