1. Yes, Newland's second and third column is contains Döbereiner’s trieds.

    Yes, Newland’s second and third column is contains Döbereiner’s trieds.

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    • 10
  2. He was fail to form triads for all the elements known at that time.

    He was fail to form triads for all the elements known at that time.

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    • 20
  3. Tiwari academy is good in contents as well as online help. Byjus and learncbse are also good.

    Tiwari academy is good in contents as well as online help. Byjus and learncbse are also good.

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    • 0