A compound is formed by two elements A and B. The element B forms cubic close packed structure and atoms of A occupy 1/3 of tetrahedral voids. If the formula of the compound is A\(_x\)B\(_y\), then the value of x + y is in option
Ionic bonding and lattice enthalpy
Every question from past board papers on Ionic bonding and lattice enthalpy, newest paper first. Open any question for its full worked answer.
NEET UG 2023 question paper (official, booklet G6)
Full paper →-
-
What fraction of one edge centred octahedral void lies in one unit cell of fcc?
NEET UG 2022 question paper (official, booklet R6)
Full paper →-
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) :
In a particular point defect, an ionic solid is electrically neutral, even if few of its cations are missing from its unit cells.
Reason (R) :
In an ionic solid, Frenkel defect arises due to dislocation of cation from its lattice site to interstitial site, maintaining overall electrical neutrality.
In the light of the above statements, choose the most appropriate answer from the options given below :
NEET UG 2021 question paper (official, booklet M4)
Full paper →-
Right option for the number of tetrahedral and octahedral voids in hexagonal primitive unit cell are :
NEET UG 2019 question paper (official, booklet P1)
Full paper →-
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 :
NEET UG 2018 question paper (official, booklet EE)
Full paper →-
Among CaH\(_2\), BeH\(_2\), BaH\(_2\), the order of ionic character is
NEET UG 2017 question paper (official, booklet B)
Full paper →-
Which is the incorrect statement ?
NEET UG 2016 Phase 1 question paper (official, booklet A)
Full paper →-
The ionic radii of \(A^{+}\) and \(B^{-}\) ions are \(0.98\times10^{-10}\) m and \(1.81\times10^{-10}\) m. The coordination number of each ion in AB is :
NEET UG 2016 Phase 2 question paper (official, booklet ZZ)
Full paper →-
In calcium fluoride, having the fluorite structure, the coordination numbers for calcium ion (\(Ca^{2+}\)) and fluoride ion (\(F^-\)) are