In the following question, four English words are given. Out of these four, select the word that is incorrectly spelt.

Introduction / Context:
This spelling question checks whether you can recognise the standard spellings of everyday English words, including scientific terms. Examinations frequently present one deliberately misspelt form that looks almost correct at first glance, expecting you to spot the extra or missing letters. Such questions reward careful observation as well as reading habit.

Given Data / Assumptions:

• The four options are Alluminium, Cemetery, Recommend, Satellite.
• Exactly one of these spellings is wrong.
• All four are common words: one is a metal, and the other three are ordinary nouns or verbs.
• We must choose the incorrectly spelt form, not the rarest or most technical word.

Concept / Approach:
The standard English spelling of the metallic element used in utensils, wires, and industrial products is aluminium in British English and aluminum in American English. Neither accepts a double l at the beginning. The other three words are spelled in a fairly straightforward manner. Therefore, the key is to compare the given forms with the standard dictionary spellings that you have seen in textbooks and daily usage.

Step-by-Step Solution:
Check Alluminium: the correct British spelling is aluminium and the American spelling is aluminum. The pattern A L U M I N I U M or A L U M I N U M is accepted; A L L U M I N I U M is not standard.Check Cemetery: correct spelling is C E M E T E R Y, which matches the option.Check Recommend: correct spelling is R E C O M M E N D with double m, matching the option.Check Satellite: correct spelling is S A T E L L I T E, which is also correct in the option.Thus, Alluminium with double l is the incorrectly spelt word.

Verification / Alternative check:
Think of common contexts: aluminium foil, aluminium utensils, aluminium windows. You will recall seeing aluminium repeatedly without a double l. If you imagine a periodic table in a school classroom, the metal is written as aluminium or aluminum but never as Alluminium. Mental recall of product packs and science books helps confirm the correct form.

Why Other Options Are Wrong:
Cemetery is frequently misspelt as cemetary by students, but here it is presented correctly, so it is not the incorrect option. Recommend is correctly written with double m in the middle. Satellite is correctly spelt, with double l and a single t at the end. Since all three match dictionary spellings, they cannot be the wrong ones in this question.

Common Pitfalls:
Many learners have a habit of mistrusting words they personally find hard, such as cemetery or recommend. Examiners exploit this by giving these difficult but correctly spelt words alongside one subtle error. The safe strategy is to check each option against your memory of printed forms, not against your personal doubts. Double consonants at the beginning of a word, like the double l in Alluminium, are often a strong hint of an incorrect spelling.

Final Answer:
The incorrectly spelt word is Alluminium; the correct standard spelling is “aluminium” (British) or “aluminum” (American).