Which of the following statements is correct?

Options

A. Silicon doped with boron is an n-type semiconductor
B. Silicon doped with arsenic is a p-type semiconductor
C. Metals are good conductors of electricity
D. Electrical conductivity of semiconductors decreases with increasing temperature

Explanation

To determine which of the statements is correct, let's analyze each statement one by one.

### Step 1: Analyze Statement 1
**Statement 1:** Silicon doped with boron in n-type semiconductor.

- **Analysis:** In n-type semiconductors, we require a dopant that provides extra electrons. Boron is a trivalent element (having three valence electrons), which means it cannot provide the necessary extra electrons. Instead, n-type semiconductors are typically doped with pentavalent elements (having five valence electrons), such as arsenic or antimony. Therefore, this statement is **incorrect**.

### Step 2: Analyze Statement 2
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