Introduction / Context:
This question checks spelling skills in English by asking you to identify the single correctly spelt word among several options. Spelling questions are very common in competitive exams because they reveal how familiar a candidate is with standard written English and scientific or technical vocabulary that frequently appears in academic texts and everyday usage.
Given Data / Assumptions:
- The four options are: glucose, hermetec, wigling, and derrogate.
- Exactly one of these words is spelt correctly according to standard English spelling.
- The word list contains one common scientific term and three incorrectly formed words.
Concept / Approach:
The concept tested here is knowledge of standard spellings of common English words, especially those that are used in science and general communication. A candidate should recognize which words exist in English in that form and which are misspelt or do not exist at all. The best approach is to recall known words and then check each option against that mental vocabulary. If necessary, one can also think of the word roots and standard suffixes to see which form is correct.
Step-by-Step Solution:
Step 1: Look at “glucose.” This is a very common term in biology and chemistry. It is the name of a simple sugar that serves as a major energy source in the body. The standard spelling is g-l-u-c-o-s-e.
Step 2: Check if there is any common alternative spelling for “glucose.” There is not; “glucose” is spelled exactly in this way in dictionaries, textbooks, and medical reports.
Step 3: Consider “hermetec.” The correct related English word is “hermetic,” which refers to something that is airtight or sealed. The given spelling “hermetec” is therefore incorrect.
Step 4: Consider “wigling.” The correct verb is “wiggling,” from the base “wiggle,” and the present participle or gerund is formed by adding “-gling” after removing the “e” if needed. The correct spelling is “wiggling,” not “wigling.”
Step 5: Consider “derrogate.” The usual English word is “derogate” or “derogatory.” The spelling “derrogate” with double “r” is not standard and is considered incorrect.
Step 6: Since “glucose” is a well-known word with correct spelling and the other three are clearly incorrect, “glucose” is the only correctly spelt word.
Verification / Alternative check:
If we consult standard usage from school textbooks and dictionaries, “glucose” appears frequently as the name of a sugar. In contrast, the other three forms do not appear in standard dictionaries in these spellings. We can also cross-check by thinking of familiar phrases: “blood glucose level” is common and always written with this spelling. This confirms that “glucose” is the correct option.
Why Other Options Are Wrong:
- hermetec: Incorrect because the accepted adjective is “hermetic,” not “hermetec.” The final letters “ec” are wrong.
- wigling: Incorrect because the correct form is “wiggling,” with double “g.” English often doubles the consonant when adding “-ing” to a one-syllable verb like “wiggle.”
- derrogate: Incorrect because the correct verb is “derogate,” and the adjective is “derogatory.” The extra “r” creates a non-standard spelling.
Common Pitfalls:
A common mistake is to overthink and suspect the familiar word. Sometimes candidates believe that the obviously known term might be a trick, so they hesitate to choose it. Another pitfall is being confused by unfamiliar words and assuming that unusual spellings must be correct because they look complicated. However, in spelling questions, the safest strategy is to rely on words that you truly recognize from trustworthy sources, rather than guessing that an odd form is correct.
Final Answer:
The correctly spelt word among the given options is
glucose.
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