Advertisements
Advertisements
Question
In the complexes `[Fe(CN)_6]^(3-)` and `[pt(en) (H_2O)_2(NO_2 (Cl)^(2+)]``the respective oxidation numbers of central metal atoms are
1) +3 and +4
2) +6 and + 4
3) +6 and +3
4) +3 and + 3
Solution
+3 and +4
APPEARS IN
RELATED QUESTIONS
Give the significance of a ‘lattice point’.
Which of the following lattices has the highest packing efficiency (i) simple cubic (ii) body-centred cubic and (iii) hexagonal close-packed lattice?
An ionic crystal lattice has limiting value of radius ratio as 0.414 to 0.732; the co-ordination number of its cation is _______.
(A) 6
(B) 4
(C) 3
(D) 12
An ionic crystal lattice has `r^+/r` radius ratio of 0.320, its coordination number is __
(a) 3
(b) 4
(c) 6
(d) 8
For a crystal of sodium chloride, state:
1) The type of lattice in which it crystallises
2) The coordina~ion number of each sodium ion and chloride ion in the crystal lattice.
3) The number of sodium ions and chloride ions present in a unit cell of sodium chloride.
4) The structural arrangement of the sodium chloride crystaL
Complete the following statement by selecting the correct alternative from the choices given:
In a face-centered cubic lattice, atom (A) occupies the comer positions and atom (B) occupies the face centre positions. If one atom of (B) is missing from one of the face-centered points, the formula of the compound is:
In a solid atom M occupies ccp lattice and `(1/3)` of tetrahedral voids are occupied by atom N. find the formula of solid formed by M and N.
A solid compound XY has NaCl structure. if the radius of the cation is 100 pm, the radius of the anion will be
Why ionic crystals are hard and brittle?
The lattice site in a pure crystal cannot be occupied by ______.
