Which of the following species are electrophilic?
(i) `BeCl_(2)`
(ii) `SnCl_(4)`
(iii) `Cr^(3+)`
(iv) `overset(+)NO_(2)`

Which of the following species is/are isoelectronic with Neon ? (i) N^(3-) (ii) Mg^(2+) (iii) K^+ (iv) Ca^(2+)

Which of the following is a covalent solid ? (i) AF_(3) (ii) Alcl_(3) (iii) MgCl_(2) (iv) BeCl_(2)

Which of the following is a covalent solid ? (i) AF_(3) (ii) Acl_(3) (iii) MgCl_(2) (iv) BeCl_(2)

Which of the following molecule is nonpolar? (i) PbCl_4 (ii) BF_3 (iii) SnCl_2 (iv) CS_2

Which of the following species act as electro-philes? (i) BF_(3) (ii) :overset(..)underset(..)C1^(+) (iii) Cl_(2)C: (iv) (CH_(3))_(2)CH^(+)

Which of the following species behave both as a nucleophile and an electrophile? (i) CH_(3)C=N: , (ii) CH_(4) (iii) H_(2)C=O , (iv) H_(2)

Predict the shapes of the following molecules using VSEPR theory (i) BeCl_(2) (ii) SnCl_(4) (iii) AsF_(5) (iv) H_(2)S (v) HgBr_(2) (vi) PH_(3) (vii) GeF_(2)

Among the following which species is/are paramagnetic (i) Sr^(2+) (ii) Fe^(3+) (iii) Co^(2+) (iv) S^(2-) (v) Pb^(2+)