Practice questions without fighting the page.

"different from" is used to compare two or more things and emphasize their dissimilarity or contrast.

<ul> <li><b>Correct option: B</b> — Formic Acid</li> <li><b>Why</b>: Certain ants (formicine ants) release formic acid as a defensive bite/sting to deter predators.</li> <li><b>Key concept</b>: Formic acid (HCOOH) is produced by ants; it causes irritation on skin or mucous membranes.</li> <li><b>Rule/brief formula</b>: HCOOH (simple carboxylic acid) — identification by association with ant secretions.</li> <li><b>Exam tip</b>: If a question mentions ant bite or formic secretion, choose Formic Acid.</li> <li><b>Other options</b>: A, C, D are not typical ant bite secretions.</li> </ul>

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<div class="ai-chip">? Vocabulary Learning</div>
<div class="ai-answer-card"><b>✅ Correct Answer</b><p>The correct synonym is Insolent.</p></div>
<div class="ai-why-card"><b>? Why?</b><p>Impudent means rude and not showing respect. Insolent has the same meaning, describing rude or disrespectful behavior.</p></div>
<div class="ai-rule-card"><b>? Remember</b><p>Think of "insolent" as not polite or respectful in speech or behavior.</p></div>
<div class="ai-example-card"><b>? Example</b><p>His insolent reply angered the teacher.</p></div>
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<div class="ai-chip">? Vocabulary Learning</div>
<div class="ai-answer-card"><b>✅ Correct Answer</b><p>Hideous.</p></div>
<div class="ai-why-card"><b>? Why?</b><p>Gruesome and hideous both mean very ugly or shocking, especially in a scary way.</p></div>
<div class="ai-rule-card"><b>? Remember</b><p>Think of something that looks so ugly it makes you feel afraid or sick.</p></div>
<div class="ai-example-card"><b>? Example</b><p>The haunted house showed a hideous, gruesome face on the wall.</p></div>
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