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Grade: 12

                        

Give two chemical properties of calomal.

6 years ago

Answers : (1)

ruchi yadav
askIITians Faculty
27 Points
							Mercury is unique among the group 12 metals for its ability to form the M–M bond so readily. Hg2Cl2is a linear molecule. The mineral calomel crystallizes in thetetragonalsystem, with space group I4/m 2/m 2/m.The Hg–Hg bond length of 253 pm (Hg–Hg in the metal is 300 pm) and the Hg–Cl bond length in the linear Hg2Cl2unit is 243 pm.The overall coordination of each Hg atom is octahedral as, in addition to the two nearest neighbours, there are four other Cl atoms at 321 pm. Longermercury polycationsexist.


Thanks
Ruchi
Askiitians Faculty
6 years ago
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