Question
According to the REACTIVITY SERIES, which of these is LEAST REACTIVE? Aluminium Copper Sodium Magnesium
Answer
4
(248 Votes)
Anthony
Professional · Tutor for 6 years
Answer
**Copper**
Explanation
## Step 1The reactivity of metals can be determined by their position in the reactivity series. The reactivity series is a list of metals arranged in order of decreasing reactivity. Metals higher up in the series are more reactive than those lower down.## Step 2In the given options, we have aluminium (Al), copper (Cu), sodium (Na), and magnesium (Mg). According to the reactivity series, sodium (Na) is highly reactive, followed by magnesium (Mg) and aluminium (Al). Copper (Cu) is much lower in the reactivity series compared to the other three metals.## Step 3Therefore, based on the reactivity series, copper (Cu) is the least reactive metal among the given options.