\( \mathrm{Be} \) वर्ग-2 के अन्य सदस्यों से कुछ लक्षणों में भिन्न होता है। इसके समर्थन में उदाहर...

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\( \mathrm{Be} \) वर्ग-2 के अन्य सदस्यों से कुछ लक्षणों में भिन्न होता है। इसके समर्थन में उदाहरण द्रेते हुए व्याख्या करो।
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