MCQ IN MEDICINE

Detailed explanation-1: -’An hour’ is correct. We say ‘an hour’ because ‘hour’ is pronounced with a vowel sound in the beginning and the ‘h’ is silent. We also say ‘an honour’ and ‘a horrible movie’ because the ‘h’ is silent in ‘honour’ and voiced in ‘horrible. ‘

Detailed explanation-2: -You use ‘an’ before words that begin with the five vowels – a, e, i, o, u. However, the way you pronounce it and not the spelling, shows you which one you must use. Examples: You should say, ‘an hour’ (because hour begins with a vowel sound) and ‘a history’ (because history begins with a consonant sound).