What do the following denote ?
(i) N, (ii) 2N, (iii) `N_(2)` , (iv) `2N_(2)`

What do the following denote (i)N (ii) Na_(2) ?

Which of the following were called permanent gases ? (i) H_(2) , (ii) O_(2) (iii) N_(2) , (iv) CH_(4)

Which of the following compounds are ionic ? (i) Li_(3)N , (ii) Be_(3)N_(2) (iii) Mg_(3)N_(2) (iv) Ca_(3)N_(2)

Which among the following are having diamagnetic property ? (i) B_(2) (ii) N_(2) (iii) O_(2) (iv) C_(2)

Give the lewis symbols of (i) Br (ii) N (iii) O^(2-) (iv) S^(2-) (v) N^(3-)

Justify whether it is true to say that the following are the nth terms of an AP. (i) 2n-3 " " (ii) 3n^(2)+5 " " (iii) 1+n+n^(2)

Justify whether it is true to say that the following are the nth terms of an AP. (i) 2n-3 " " (ii) 3n^(2)+5 " " (iii) 1+n+n^(2)