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Directorate of Higher Secondary Education (DHSE Kerala) Class XII Chemistry Set 02 (Advanced Level) English Medium 100% Free Practice Test

Directorate of Higher Secondary Education (DHSE Kerala) Class XII Chemistry: Chemistry in Everyday Life Online Test (Set 02 (Advanced Level)) | TargetExams

Chemistry in Everyday Life — Set 02 (Advanced Level)

Take free online mock test for Directorate of Higher Secondary Education (DHSE Kerala) Class XII Chemistry chapter 'Chemistry in Everyday Life'. 20 MCQs, 20 minutes, detailed solutions & score analysis.

📝
20 MCQs
Questions
⏱️
20 Mins
Duration
🎯
20 Marks
Total Marks
➕
+1.0
Per Correct
🛡️
0.0
Negative Mark
🌐
English
Language
Start Test Now (English Medium)
Instant Scorecard Step-by-Step Solutions DHSE Kerala SCERT Pattern

Chapter Study Guide & In-Depth Notes

Master the key concepts, vocabulary, and high-yield questions before starting the test.

3 Sections

Chapter Overview & Core Concepts: Chemistry in Everyday Life

Class 12 Study Guide

Mastering Chemistry in Everyday Life in Class 12 provides critical subject intuition, analytical skills, and examination readiness.

Examinations test fundamental principles, definitions, cause-and-effect reasoning, and real-world applications under timed conditions.

Core Moral & Key Takeaway:

Grasping core concepts and practicing with timed chapter-wise CBT tests guarantees top performance in board exams.

Key Terminology, Definitions & Principles

Glossary & Concepts
Term / Formula Type Definition / Meaning Explanation / Notes Example / Usage
Core Concept Principle Primary concept governing Chemistry in Everyday Life. मुख्य सिद्धांत "Understand and apply the principle accurately."
Analytical Deduction Skill Evaluating evidence to draw correct conclusions. तार्किक विश्लेषण "Examine question clues systematically."

Key Features & Devices Explored:

Systematic Elimination
Eliminate distractor choices before selecting the best answer.
Pacing & Accuracy
Complete each question within 60 seconds to maintain steady momentum.

High-Yield Revision Points & Solved Board Exam Q&A

Revision Notes
⚡ High-Yield Exam Takeaways:
  • Review all key textbook terms, definitions, and formulas.
  • Pay attention to units, boundary values, and key keywords in questions.
  • Solve Foundation Set 01 to build confidence, followed by Advanced Set 02 for exam excellence.
Frequently Asked Questions & Model Answers:
Q1 How should students prepare for Chemistry in Everyday Life exams?
Answer: Read the chapter thoroughly, practice step-by-step solved examples, memorize key definitions, and evaluate preparation using timed online CBT mock tests.

Sample Questions Preview

Free Sneak Peek

Here is a sneak peek of the questions included in this test set. Test your preparation by viewing the answer and detailed explanation before starting the timed exam.

Q1
What are the three classes of **Synthetic Detergents** with common commercial examples?
പൊതുവായ വാണിജ്യ ഉദാഹരണങ്ങളുള്ള **സിന്തറ്റിക് ഡിറ്റർജൻ്റുകൾ** എന്ന മൂന്ന് ക്ലാസുകൾ ഏതൊക്കെയാണ്?
A
**1. **Anionic Detergents**: Anionic lipophilic head, e.g., **Sodium Lauryl Sulfate [$\text{CH}_3(\text{CH}_2)_{10}\text{CH}_2\text{OSO}_3^-\text{Na}^+$]** and Sodium dodecylbenzenesulfonate (household detergents, toothpastes); 2. **Cationic Detergents**: Quaternary ammonium salt with cationic head, **Germicidal action**, expensive, e.g., **Cetyltrimethylammonium Bromide [$\text{CH}_3(\text{CH}_2)_{15}\text{N}^+(\text{CH}_3)_3\text{Br}^-$]** (hair conditioners); 3. **Non-Ionic Detergents**: No ionic charge, formed by reacting stearic acid with polyethylene glycol, e.g., **Polyethylene glycol stearate** (liquid dishwashing detergents)****1. **അനിയോണിക് ഡിറ്റർജൻ്റുകൾ**: അയോണിക് ലിപ്പോഫിലിക് ഹെഡ്, ഉദാ., **സോഡിയം ലോറിൽ സൾഫേറ്റ് [$\text{CH}_3(\text{CH}_2)_{10}\text{CH}_2\text{OSO}_3^-\text{Na}^+$]** സോഡിയം ഡോഡെസൈൽബെൻസെൻസൽഫോണേറ്റ് (ഗാർഹിക ഡിറ്റർജൻ്റുകൾ, ടൂത്ത്പേസ്റ്റുകൾ); 2. **കാറ്റോണിക് ഡിറ്റർജൻ്റുകൾ**: കാറ്റാനിക് ഹെഡ് ഉള്ള ക്വാട്ടേണറി അമോണിയം ഉപ്പ്, **അണുനാശിനി പ്രവർത്തനം**, ചെലവേറിയത്, ഉദാ, **സെറ്റിൽട്രിമെത്തിലാമോണിയം ബ്രോമൈഡ് [$\text{CH}_3(\text{CH}_2)_{15}\text{N}^+(\text{CH}_3)_3\text{Br}^-$]** (ഹെയർ കണ്ടീഷണറുകൾ); 3. **അയോണിക് ഇതര ഡിറ്റർജൻ്റുകൾ**: അയോണിക് ചാർജ് ഇല്ല, പോളിയെത്തിലീൻ ഗ്ലൈക്കോളുമായി സ്റ്റിയറിക് ആസിഡ് പ്രതിപ്രവർത്തിച്ച് രൂപം കൊള്ളുന്നു, ഉദാ., **പോളീത്തിലീൻ ഗ്ലൈക്കോൾ സ്റ്റിയറേറ്റ്** (ദ്രാവക പാത്രം കഴുകുന്ന ഡിറ്റർജൻ്റുകൾ)**
B
All detergents are cationicഎല്ലാ ഡിറ്റർജൻ്റുകളും കാറ്റാനിക് ആണ്
C
Anionic detergents are used in hair conditionersഹെയർ കണ്ടീഷണറുകളിൽ അയോണിക് ഡിറ്റർജൻ്റുകൾ ഉപയോഗിക്കുന്നു
D
Non-ionic detergents are insoluble in waterഅയോണിക് അല്ലാത്ത ഡിറ്റർജൻ്റുകൾ വെള്ളത്തിൽ ലയിക്കില്ല
Correct Answer: Option A
Explanation:
Classification based on the ionic charge of the active surfactant head group: Anionic ($-$), Cationic ($+$), Non-Ionic (neutral polyether).
സജീവ സർഫക്റ്റൻ്റ് ഹെഡ് ഗ്രൂപ്പിൻ്റെ അയോണിക് ചാർജ് അടിസ്ഥാനമാക്കിയുള്ള വർഗ്ഗീകരണം: അയോണിക് ($-$), കാറ്റോനിക് ($+$), നോൺ-അയോണിക് (ന്യൂട്രൽ പോളിഥർ).
Q2
Why are **Branched-Chain Synthetic Detergents environmentally hazardous**, and why have they been replaced by **Straight Linear Alkyl Chain Detergents**?
എന്തുകൊണ്ട് **ബ്രാഞ്ച്ഡ്-ചെയിൻ സിന്തറ്റിക് ഡിറ്റർജൻ്റുകൾ പരിസ്ഥിതിക്ക് അപകടകരമാണ്**, എന്തുകൊണ്ട് അവയ്ക്ക് പകരം **സ്ട്രെയിറ്റ് ലീനിയർ ആൽക്കൈൽ ചെയിൻ ഡിറ്റർജൻ്റുകൾ**?
A
**Highly branched hydrocarbon chains **Resist Microbial Enzymatic Degradation**, accumulating in rivers and wastewater treatment plants to form persistent, suffocating toxic foam; **Linear unbranched alkyl chains are easily Biodegradable** by soil/river bacteria****വളരെ ശാഖിതമായ ഹൈഡ്രോകാർബൺ ശൃംഖലകൾ **മൈക്രോബയൽ എൻസൈമാറ്റിക് ഡീഗ്രേഡേഷനെ പ്രതിരോധിക്കും**, നദികളിലും മലിനജല ശുദ്ധീകരണ പ്ലാൻ്റുകളിലും അടിഞ്ഞുകൂടുന്നത് സ്ഥിരവും ശ്വാസംമുട്ടിക്കുന്നതുമായ വിഷ നുരയെ രൂപപ്പെടുത്തുന്നു; ** രേഖീയ ശാഖകളില്ലാത്ത ആൽക്കൈൽ ശൃംഖലകൾ മണ്ണ്/നദി ബാക്ടീരിയകൾ ** എളുപ്പത്തിൽ ബയോഡീഗ്രേഡബിൾ ആണ്**
B
Branched detergents explode in sunlightശാഖകളുള്ള ഡിറ്റർജൻ്റുകൾ സൂര്യപ്രകാശത്തിൽ പൊട്ടിത്തെറിക്കുന്നു
C
Linear detergents are toxic to fishലീനിയർ ഡിറ്റർജൻ്റുകൾ മത്സ്യത്തിന് വിഷമാണ്
D
Branched detergents do not dissolve in waterശാഖകളുള്ള ഡിറ്റർജൻ്റുകൾ വെള്ളത്തിൽ ലയിക്കുന്നില്ല
Correct Answer: Option A
Explanation:
Microbial $eta$-oxidation enzymes can degrade unbranched linear alkylbenzene sulfonates (LAS), avoiding persistent foaming pollution.
മൈക്രോബയൽ $eta$-ഓക്സിഡേഷൻ എൻസൈമുകൾക്ക് ശാഖകളില്ലാത്ത ലീനിയർ ആൽക്കൈൽബെൻസീൻ സൾഫോണേറ്റുകളെ (LAS) നശിപ്പിക്കാൻ കഴിയും, ഇത് തുടർച്ചയായ നുരയെ മലിനീകരണം ഒഴിവാക്കുന്നു.

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Competitive Edge

Real-Time Clock Awareness & Pacing

समय प्रबंधन एवं गति नियंत्रण

In school examinations, students write answers without active pacing. In national entrance tests, students have barely 45-60 seconds per MCQ. Practicing with a 20-minute timer instills instinctive time-budgeting and prevents last-minute exam panic.

Mastery of the Elimination Technique

विकल्प निष्कासन विधि में दक्षता

Top rankers in competitive exams rarely compute every problem blindly. They spot subtle traps, evaluate extreme values, and eliminate 2 out of 4 distractors within seconds. Our 4-option sets teach critical distractor analysis.

CBT Screen Stamina & Digital Comfort

कंप्यूटर आधारित परीक्षा का सहज अभ्यास

Almost all major national exams (CUET, JEE, NEET, SSC, Banking) are 100% computer-based. Students who only study on paper experience eye strain and navigation mistakes on exam day. Early CBT practice creates effortless digital fluency.

Immunity to Negative Marking

सटीकता और नकारात्मक अंकन से सुरक्षा

Careless errors—such as misreading "NOT" or "EXCEPT"—ruin thousands of competitive aspirations each year. Regular objective testing builds the habit of double-checking question keywords before locking answers.

Instant Diagnostic Feedback Loop

तत्काल त्रुटि निवारण एवं आत्म-मूल्यांकन

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Syllabus Concepts Evaluated in this Chapter

This test series specifically evaluates the core competencies and learning objectives outlined in the official syllabus:

  • Core definitions, fundamental theorems, and essential concepts of this chapter.
  • Step-by-step mathematical reasoning and deductive problem-solving.
  • Application of standard formulas and operations in real-world scenarios.
  • Critical examination of common exam pitfalls and misleading options.
  • Higher-order thinking skill (HOTS) questions to prepare for school examinations.
  • Speed and accuracy mastery under standard timed CBT exam conditions.

Exam Rules & Test Taking Guidelines

  • Total Questions: The test consists of exactly 20 objective type questions.
  • Time Allowed: 20 Minutes countdown timer begins as soon as the test launches.
  • Marking Scheme: +1.0 mark is awarded for each correct answer.
  • Zero Penalty: There is 0.0 negative marking for incorrect or unattempted questions.
  • Question Palette: Freely navigate between questions and flag questions for later review.
  • Review & Solutions: Access instant scorecard and full step-by-step solutions upon submission.

Frequently Asked Questions (FAQs)

Yes! Foundation Practice Set 01 for every chapter in Directorate of Higher Secondary Education (DHSE Kerala) Class XII Chemistry is 100% free to attempt. Students can test their knowledge without any payment or hidden fees.
This page is dedicated to English Medium. You can also attempt this test in Hindi Medium by clicking the switcher at the top.
Absolutely. All 20 multiple-choice questions are strictly designed in line with the latest guidelines, covering both basic conceptual understanding and higher-order thinking skills.
The test contains 20 MCQs to be solved in 20 minutes. Each question carries +1.0 mark for a correct answer, and there is zero (0.0) negative marking for incorrect answers.
Yes. Immediately upon submitting your test, you receive a comprehensive performance summary including your total score, accuracy percentage, time spent per question, and full step-by-step explanations for all 20 questions.

Practice Sets in this Chapter

Set 01 (Foundation)

20 MCQs • 20 Mins
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Set 02 (Advanced)

20 MCQs • 20 Mins
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More Chapters in this Subject

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Chemistry in Everyday Life (Set 02 (Advanced Level))
20 MCQs • 20 Mins • 100% Free Practice Test

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