p-Block elementsHard
Question
Methanides are :
Options
A.Mg2C3, Be2C, Al4C3 and CaC2
B.Mg2C3, Be2C and Al4C3
C.Be2C, Al4C3 and CaC2
D.Be2C and Al4C3
Solution
Methanides give CH4 on reaction with H2O.
Al4C3 + 12H2O → 4Al (OH)3 + 3CH4 ; Be2C + 4H2O → 2Be (OH)2 + CH4
Al4C3 + 12H2O → 4Al (OH)3 + 3CH4 ; Be2C + 4H2O → 2Be (OH)2 + CH4
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