Anhydrous `MgCl_(2)` is obatined by heating hydrate salt with _____.

Anhydrous MgCl_(2) is obatined by heating hydrate salt, MgCl_(2).6H_(2)O .

Anhydrous AlCl_(3) cannot be prepared by heating hydrated salt. Why?

Explain the following: (1) Anhydrous FeCl_(3) cannot be obtained by heating hydrated FeCl_(3) (2) The colour of mercurous chloride changes from white to black when treated with ammonia solution

Explain the following : (i). FeCl_3 and FeBr_3 are well known, but FeI_3 has doubtful existence. (ii). Anhydrous FeCl_3 cannot be obtained by heating hydrated ferric chloride.

Can anhydrous magnesium chloride be prepared by heating the hydrated salt?

One mole of anhydrous MgCl_(2) dissolves in water and librates 25 cal//mol of heat. Delta H_("hydration") of MgCl_(2)=30 cal//mol . Heat of dissolution of MgCl.H_(2)O

A solution of MgCl_(2) in water has pH

When hydrated MgCI_(2).6H_(2)O is strongly heated,

Calcium sulphate is found in nature in two forms, anhydrous calcium sulphate and hydrated calcium sulphate. When anhydrous calcium sulphate is heated with coke, sulphur dioxide gas is obtained. When hydrated calcium suphate is heated to 200^(@) C, it forms anhydrous salt. Q. The anhydrous calcium sulphate is called :

Calcium sulphate is found in nature in two forms, anhydrous calcium sulphate and hydrated calcium sulphate. When anhydrous calcium sulphate is heated with coke, sulphur dioxide gas is obtained. When hydrated calcium suphate is heated to 200^(@) C, it forms anhydrous salt. Q. When calcium sulphate is mixed with conc. HCl and the paste is formed. What colour is obtained wehn a pinch of this paste is brought near the flame?