WBCS.LIVE practice question

In general the metal obtained by reduction contains impurities. Presence of small impurities makes a metal quite hard because the impurities

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. change the lattice structure of metals
  2. reduce the number of slide planes
  3. reduce the number of mobile electrons
  4. reduce the crystal symmetry

Correct answer and explanation

Correct answer: reduce the number of slide planes