First slide

Alkaline earth metals

Question

Be and Al resemble in many aspects, but not in the following

Moderate

A

both form electron deficient hydrides
B

both are rendered passive by HNO₃
C

both form amphoteric oxides
D

both have sp-hybridisation in their compounds

Solution

${BeCl}_{2} - sp-hybridised$
${AlCl}_{3} - s p^{2} -hybridised$

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