Seema Saini Solutions for Chapter: Solid State, Exercise 5: DPP 1.5

Which of the following represents the correct order of conductivity in solids?

Which of the following is true about the charge acquired by $\mathrm{p}$-type semiconductor?

The composition of a sample of Wustite is ${\mathrm{Fe}}_{0.93}{\mathrm{O}}_{1.00}$. The percentage of $\mathrm{Fe} \left(\mathrm{III}\right)$ ions present in the sample is about.

Select the correct statement (s) regarding defects in solids.

Which of the following is/are correct about the point defects?

The correct statement (s) for alkali halides is/are

An excess of potassium ions make $\mathrm{KCl}$ crystals appear violet or lilac in colour since

Which of the following defects decreases the density?