Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
JEE Main 202118 MarchEvening Shift
Exam
JEE Main
Year
2021
Date
18 March
Shift
Evening Shift
Subject
Chemistry
Chapter
Solid State

JEE Main 2021 · 18 March · Evening Shift · Chemistry · Solid State

A hard substance melts at high temperature and is an insulator in...

A hard substance melts at high temperature and is an insulator in both solid and in molten state.
This solid is most likely to be a / an :

Options

  1. AIonic solid
  2. BMolecular solid
  3. CMetallic solid
  4. DCovalent solid

Correct answer

D. Covalent solid

Step-by-step solution

Covalent or network solid have very high melting point, and they are insulators in their solid and molten form.
Practice Solid State on Quantrex Academy →

More from Solid State

The density (in g cm^ -3 ) of the metal which forms a cubic close packed (ccp) lattice… JEE Advanced 2025Atoms of metals x, y and z form face-centred cubic (fcc) unit cell of edge length L _ x… JEE Advanced 2023Which of the following expressions is correct in case of a CsCl unit cell (edge length… JEE Main 2023Sodium metal crystallises in a body centred cubic lattice with unit cell edge length of… JEE Main 2023An atomic substance A of molar mass 12g mol ^ – 1 has a cubic crystal structure with edge… JEE Main 2023The correct relationships between unit cell edge length ‘ a ’ and radius of… JEE Main 2023Number of crystal systems from the following where body centred unit cell can be found… JEE Main 2023A compound is formed by two elements X and Y . The element Y forms cubic close packed… JEE Main 2023 Full Solid State list All JEE Main PYQs