Solid State · Chemistry · WB JEE
MCQ (Single Correct Answer)
1
A compound contains two types of atoms $A$ and $B$ ．Its crystal structure is a cubic lattice with＇$A$＇ atoms at the corner of the unit cells and＇$B$＇atoms at the body centres．The simplest formula of the compound will be
WB JEE 2026
2
If three elements $A, B, C$ crystalise in a cubic solid lattice with $B$ atoms at the cubic centres, $C$ aton at the centre of edges and A atoms at the corners, then formula of the compound is
WB JEE 2025
3
Metallic conductors and semiconductors are heated separately. What are the changes with respect to conductivity?
WB JEE 2024
4
What is the edge length of the unit cell of a body centred cubic crystal of an element whose atomic radius is 75 pm?
WB JEE 2023
5
The number of atoms in body centred and face centred cubic unit cell respectively are
WB JEE 2022
6
An element crystallises in a body centered cubic lattice. The edge length of the unit cell is 200 pm and the density of the element is 5.0 g cm$$-$$3. Calculate the number of atoms in 100 g of this element.
WB JEE 2021
7
In the face centered cubic lattice structure of gold the closest distance between gold atoms is ('a' being the edge length of the cubic unit cell)
WB JEE 2020
8
A compound formed by elements X and Y crystallises in the cubic structure, where X atoms are at the corners of a cube and Y atoms are at the centre of the body. The formula of the compounds is
WB JEE 2018
9
In a close-packed body-centred cubic lattice of potassium, the correct relation between the atomic radius (r) of potassium and the edge-length (a) of the cube is
WB JEE 2017
10
Ionic solids with Schottky defect may contain in their structure
WB JEE 2016