1
WB JEE 2025
MCQ (Single Correct Answer)
+1
-0.25

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

A
$\mathrm{AB}_3 \mathrm{C}$
B
$\mathrm{A}_3 \mathrm{BC}$
C
$\mathrm{ABC}_3$
D
$\mathrm{ABC}$
2
WB JEE 2024
MCQ (Single Correct Answer)
+1
-0.25

Metallic conductors and semiconductors are heated separately. What are the changes with respect to conductivity?

A
increase, decrease
B
decrease, decrease
C
increase, decrease
D
decrease, increase
3
WB JEE 2023
MCQ (Single Correct Answer)
+1
-0.25

What is the edge length of the unit cell of a body centred cubic crystal of an element whose atomic radius is 75 pm?

A
170 pm
B
175 pm
C
178 pm
D
173.2 pm
4
WB JEE 2022
MCQ (Single Correct Answer)
+1
-0.25

The number of atoms in body centred and face centred cubic unit cell respectively are

A
2 and 4
B
4 and 3
C
1 and 2
D
4 and 6
WB JEE Subjects