कौनसा तत्व स्वतन्त्र अवश्था में पाया जाता है?   - Study24x7
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07 Dec 2019 10:42 AM study24x7 study24x7

कौनसा तत्व स्वतन्त्र अवश्था में पाया जाता है?  

A

बेरेलियम

B

सोडियम

C

हीलियम

D

सल्फर

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