Question

Which of the following statments is incorrect?

• A. If one of the metals is mercury, then the alloy is known as an amalgam.
• B. The metals high up in the reactivity series are very reactive.
• C. Metals above hydrogen in the activity series cannot displace hydrogen from dilute acids.
• D. Metals reacts with dilute acid to form its salt and hydrogen gas.

Answer 1

The correct option is C

Metals above hydrogen in the activity series cannot displace hydrogen from dilute acids.

The metals high up in the reactivity series are very reactive. More reactive metals can replace less reactive metals. Metals above hydrogen in the activity series can displace hydrogen from dilute acids.