Question

Group 2 halides, `MX_(2)`, can be made by
A. heating the metals with the halogen
B. the action of halogen acid on the metal
C. the action of halogen acid on the metal carbonate, metal hydroxide, and metal oxide
D. all of these

Answer 1

Correct Answer - D
`Ca+Cl_(2)overset(Delta)toCaCl_(2)`
`Ca+2CHl toCaCl_(2)+H_(2)`
`CaCO_(3)+HCl toCaCl_(2)+H_(2)O+CO_(2)`
`CaO+2HCl toCaCl_(2)+H_(2)O`
`Ca(OH)_(2)+2HCl toCaCl_(2)+2H_(2)O`