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Be like Al does not dissolve in alkalies

Oxides of both Be and Al are amphoteric

Beryllium chloride like Aluminium chloride is covalent

Carbides of both Be and AI react with water evolving methane

answer is A.

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Detailed Solution

"Be" shows certain similarities with "Al" due to diagonal relationshipThose similarities areThe oxides of both Be [BeO] and Al[Al2O3] are amphoteric and hence they dissolve in NaOH solution as well as in HClBeO + 2HCl → BeCl2 + H2OBeO+2NaOH→Na2BeO2sodium berrylate+H2OAl2O3 + 6HCl → 2AlCl3 + 3H2OAl2O3+NaOH→NaAlO2Sodium meta aluminate+H2OBeCl2 & AlCl3 are covalent in nature,Being covalent they are soluble in organic solvantsBe2C, Al4C3 are called methanidesBecause Be2C & Al4C3 on hydrolysis gives methaneBe2C+4H2O→2BeOH2+CH4Methane Al4C3+12H2O→4AlOH3+3CH4So option (1) is incorrect

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