Give three points of resemblance between Boron and Silicon

Give three points of difference between physisorption and chemisorption.

(a) Give three points of difference between lanthanoids and actinoids. (b) Give reason and select on one atom/ion which will exhibit asked property: (i) Sc^(3+) or Cr^(3+) (exhibit diamagnetic behaviour) (ii) Cr or Cu (high melting and boiling point)

Give three points of distinction between ethylamine and aniline.

Given three points of differences between inductive effect and resonance effect.

Give 2 points of difference between molarity and molality.

Write three points of differences between para, dia-and ferro- mangetic materials, giving one example for each.

Give the main points of distinction between boiling and evaporation.

Give two points of difference between thermoplastic and thermosetting polymers.

Give three major differences between chordates and non chordates and draw a schematic sketch of a chordate showing those features.

Give three structural differences between a frog and a lizard.