What is the correct electronic configuration of the central atom in K4[Fe(CN)6] based on crystal field theory
A compound is formed by cation C and anion A. The anions form hexagonal close packed (hcp) lattice and the cations occupy 75% of octahedral voids. The formula of the compound is :
C3A2
C3A4
C4A3
C2A3
B.
C3A4
Anions(A) are in hcp, so number of anions (A) = 6
Cations(C) are in 75% O.V., so number of cations (C)
So formula of compound will be
Match the Xenon compounds in Column-I with its structure in Column-II and assign the correct code:
Column-I | Column- II |
(a) XeF4 | (i) Pyramidal |
(b) XeF6 | (ii) Square planar |
(c) XeOF4 | (iii) Distorted octahedral |
(d) XeO3 | (iv) Square pyramidal |
Code:
(a) (b) (c) (d)
(ii) (iii) (iv) (i)
(a) (b) (c) (d)
(ii) (iv) (i) (iv)
(a) (b) (c) (d)
(iii) (iv) (i) (ii)
(a) (b) (c) (d)
(i) (ii) (iii) (iv)
Which of the following is incorrect statement?
SiCl4 is easily hydrolysed
GeX4 (X = F, Cl, Br, I) is more stable than GeX2
SnF4 is ionic in nature
PbF4 is covalent in nature
Which mixture of the solutions will lead to the formation of negatively charged colloidal [Agl]l– sol ?
50 mL of 1 M AgNO3 + 50 mL of 2 M KI
50 mL of 2 M AgNO3 + 50 mL of 1.5 M KI
50 mL of 0.1M M AgNO3 + 50 mL of 0.1 M KI
50 mL of 1 M AgNO3 + 50 mL of 1.5 M KI
Match the following :
(a) Pure nitrogen | (i) Chlorine |
(b) Haber process | (ii) Sulphuric acid |
(c) Contact process | (iii) Ammonia |
(d) Deacon’s process | (iv) Sodium azide or Barium azide |
Which of the following is the correct option?
(a) (b) (c) (d)
(ii) (iv) (i) (iii)
(a) (b) (c) (d)
(iii) (iv) (ii) (i)
(a) (b) (c) (d)
(iv) (iii) (ii) (i)
(a) (b) (c) (d)
(i) (ii) (iii) (iv)