SPOT THE ERRORSWhen Chips entered (A) in the midst(B) of the uproar(C) there was a insant hush.

Explanation

The sentence should read: "When Chips entered, there was an instant hush in the midst of the uproar."The error in the original sentence is the absence of the indefinite article "an" before "instant hush". "Instant hush" is a noun phrase that begins with a vowel sound, so it requires the indefinite article "an" instead of "a".