JEE Main · ChemistryHard
Which of the following statements is correct regarding the properties of beryllium and its compounds?
- A. is amphoteric in nature.
- B. is ionic and exists as a monomer in the vapor phase.
- C. is acidic and does not react with bases.
- D. forms a stable carbonate that does not decompose upon heating.
Show correct answer & step-by-step solution
Correct answer: A — is amphoteric in nature.
Solution
- Beryllium is the first member of group 2 and shows diagonal relationship with aluminum.
- reacts with acids to form salts and with bases to form beryllates, confirming its amphoteric nature.
- is covalent and exists as a polymeric chain in the solid state and a dimer in the vapor phase.
- Hence the answer is (A).
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