Question

Assertion (A): Group-$13$ doped crystals of silicon are called a p-type semiconductors.

Reason (R): Holes (positive in charge) appear to be responsible for the semiconducting properties.

• A. Both Assertion and Reason are true and Reason is the correct explanation of Assertion
• B. Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
• C. Assertion is true but Reason is false.
• D. Assertion is false but Reason is true

Answer 1

The correct option is A Both Assertion and Reason are true and Reason is the correct explanation of Assertion

Both assertion and reason are correct and Reason is correct explanation. Group 13 elements have one electron less than group 14 elements so doping of group 13 elements with group 14 elements create electron deficiency that's why is called p-type semiconductor.