CUET Preparation Today
The chemical formula of mineral beryl |
$[BeBr_2(en)_2]^+$ $[BeCl_2]$ $(Be_3Al_2Si_6O_{18})$ $[Be(NH_3)_2 Cl_2(en)]^+$ |
$(Be_3Al_2Si_6O_{18})$ |
The correct answer is Option (3) → $(Be_3Al_2Si_6O_{18})$. Beryl is a naturally occurring mineral and an important source of beryllium. It is composed of beryllium, aluminum, silicon, and oxygen. The correct formula, Be₃Al₂Si₆O₁₈, represents the structure of beryl, which consists of rings of silicate (Si₆O₁₈) groups connected by beryllium (Be²⁺) and aluminum (Al³⁺) ions. The other options provided are complex compounds or coordination compounds, which are unrelated to the naturally occurring mineral beryl. Summary: The chemical formula of beryl is Be₃Al₂Si₆O₁₈. |
