Solid StateHard
Question
Given an alloy of Cu, Ag and Au in which Cu atoms constitute the CCP arrangement.If the hypothetical formula of the alloy is Cu4Ag3Au. What are the probable locations of Ag and Au atoms.
Options
A.Ag - all Tetrahedral voids; Au - all Octahedral voids
B.Ag - 3/8th Tetrahedral voids; Au - 1/4th Octahedral voids
C.Ag - 1/2 Octahedral voids; Au - 1/2 Tetrahedral voids
D.Ag - 1/2 Octahedral voids; Au - 1/2 Tetrahedral voids
Solution
Cu4 → Froms c.c.p. z = 4
Ag3 →
th of tetrahedral voids, [∴ No. of T- voids = 8].
Au →
of Octahedral voids [∴ No. of O - voids = 4]
Ag3 →
th of tetrahedral voids, [∴ No. of T- voids = 8]. Au →
of Octahedral voids [∴ No. of O - voids = 4]Create a free account to view solution
View Solution FreeMore Solid State Questions
A metal has a fcc lattice. The edge length of the unit cell is 404 pm. The density of the metal is 2.72 gm-cm-3. The mol...The radius of Ag+ ion is 126 pm while of I− ion is 216 pm. The coordination number of Ag in AgI is...Potassium hexachloroplatinate (IV), K2[PtCl6] adopts anti-fluorite crystal structure. Which of the following information...A solid has a structure in which W atoms are located at the corners of a cubic lattice. O atom at the center of the edge...If the radius of a metal atom is 2.00 (Ao) and its crystal structure in cubic close packed (fcc lattice), what is the vo...