Shweta Thakur posted an Question
July 17, 2020 • 14:38 pm 30 points
  • IIT JAM
  • Chemistry (CY)

Plz explain these two question also... 6) lithium is the only alkali metal to form a nitride directly. (c) e' for m(ag) (where m = ca, sr or ba)

(6) Lithium is the only alkali metal to form a nitride directly. (c) E' for M(ag) (where M = Ca, Sr or Ba) is nearly constant.

2 Answer(s) Answer Now
  • 0 Likes
  • 4 Comments
  • 0 Shares
  • comment-profile-img>
    Priyanshu kumar

    Lithium is the smallest atom among alkali metals. ... When Lithium reacts with nitrogen gas at room temperature (N2), it forms Lithium Nitride (Li3N) which is stable, because the lattice energy released from the formation of Li3N is high enough to make the overall reaction exothermic. read this shweta👆

    eduncle-logo-app

    Following factors are responsible for the electrode potential value. (a) Ionization enthalpy (ii) Hydration enthalpy (iii) Enthlpy of vaporisation. For Ba,Sr and Ca, the net effect of above factors is same. Hence, their electrode potentials are nearly constant.

    eduncle-logo-app

    read this👆

    eduncle-logo-app

    thanku

  • Suman Kumar

    In 1s group only lithium form covalent compound Sweta

    eduncle-logo-app

    Sweta please ask if you don't get it

    eduncle-logo-app

    yes mam because lithium is smallest and polarizing power is inversely related to size

  • Suman Kumar Best Answer

    Lithium resembles with Magnesium. Remember bridge relationship. Lithium has high polarizing power so it can form covalent bond. So it can form Nitride

    eduncle-logo-app

    Sweta did you get this

    eduncle-logo-app

    yes mam then why not na ,k RB form bond with nitrogen

    eduncle-logo-app

    They don't have high polarizing power

    eduncle-logo-app

    thanks

whatsapp-btn

Do You Want Better RANK in Your Exam?

Start Your Preparations with Eduncle’s FREE Study Material

  • Updated Syllabus, Paper Pattern & Full Exam Details
  • Sample Theory of Most Important Topic
  • Model Test Paper with Detailed Solutions
  • Last 5 Years Question Papers & Answers