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QJEEM20Ch7b83: JEE Main 2020 Chemistry - Class 11 JEEM20Ch7b83 Solution: Two elements A and B have similar chemical properties. They…

Two elements A and B have similar chemical properties. They don’t form solid hydrogencarbonates, but react with nitrogen to form nitrides. A and B, respectively, are :

Multiple Choice Options

  • A Li and Mg
  • B Cs and Ba
  • C Na and Rb
  • D Na and Ca

Step-by-Step Verified Solution

Solid hydrogencarbonates are not formed by lithium and magnesium.

– 6Li + N2 → 2Li3N

– 3Mg + N2 → Mg3N2

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