हिंदी

____________ and ____________ are the rarest elements of the group 18. -

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प्रश्न

____________ and ____________ are the rarest elements of the group 18.

विकल्प

  • Xenon, radon

  • Xenon, helium

  • Helium, argon

  • Argon, radon

MCQ
रिक्त स्थान भरें

उत्तर

Argon and radon are the rarest elements of the group 18.

shaalaa.com
Chemical Properties of Elements of Groups 16, 17 and 18
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