Arrange the following words in the sequence in which they occur in the dictionary: i. Recognize ii. Receptive iii. Record iv. Recur

Introduction / Context:
This is a dictionary order question involving words with a common prefix “Rec-”. The challenge is to accurately compare the letters that follow this prefix to determine the correct sequence. Such questions reward methodical letter-by-letter analysis and punish guessing based on word familiarity or meaning.

Given Data / Assumptions:
- Words: Recognize, Receptive, Record, Recur.
- Index mapping: i. Recognize, ii. Receptive, iii. Record, iv. Recur.
- Standard alphabetical ordering rules apply.

Concept / Approach:
Since all words start with “Re”, and more specifically “Rec” for three of them, we must move to subsequent letters to separate them. You compare words character by character: the first point where they differ decides their order. When all earlier letters match, you continue until you find a difference or one word ends, in which case the shorter word comes first.

Step-by-Step Solution:
Step 1: Write the words with their initial letters highlighted: Receptive, Recognize, Record, Recur. Step 2: Compare the first three letters. Receptive, Recognize and Record all start with R-E-C; Recur starts with R-E-C as well? Actually Recur is R-E-C-U-R, so all four start with R-E-C. Step 3: Look at the fourth letter: Receptive has E (Rece...), Recognize has O (Reco...), Record has O (Reco...), Recur has U (Recu...). Alphabetically, E comes before O, which comes before U. Step 4: Therefore, Receptive (ii) must come first among all four words. Step 5: Next, consider the two words starting with Reco: Recognize (Recognize) and Record (Record). Compare: R E C O G... vs R E C O R.... The letters match as R-E-C-O; then G comes before R, so Recognize (i) comes before Record (iii). Step 6: Finally, Recur (iv), starting with Recu, follows the Reco words because U comes after O. Step 7: Combining these conclusions gives the order: Receptive, Recognize, Record, Recur → ii, i, iii, iv.

Verification / Alternative check:
Picture a dictionary page: you would first arrive at “receptive” under “rece…”. After finishing the “rece…” group, you would encounter “recognize” and then “record” under “reco…”, ordered by the difference between “recogn-” and “recor-”. After all “reco…” words, “recur” with “recu…” follows. This matches the sequence ii, i, iii, iv.

Why Other Options Are Wrong:
- iv, iii, ii, i wrongly starts with Recur and places it before the “rece…” and “reco…” words, which contradicts the ordering of E, O and U.
- ii, i, iv, iii incorrectly puts Recur before Record, though U comes after O.
- i, ii, iii, iv starts with Recognize before Receptive, ignoring that E comes before O.

Common Pitfalls:
Learners sometimes focus on the familiarity of words and may assume that “record” should appear earlier because it is more common. Others might misjudge the order of E, O and U. To avoid errors, temporarily ignore meanings and rely strictly on letter comparison: E < O < U. This ensures the right sequence even with similar-looking words.

Final Answer:
The correct dictionary order is Receptive, Recognize, Record, Recur, corresponding to ii, i, iii, iv.