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National Institute of Open Schooling (NIOS) Class XII Chemistry (313) Set 02 (Advanced Level) English Medium 100% Free Practice Test

National Institute of Open Schooling (NIOS) Class XII Chemistry (313): Solutions Online Test (Set 02 (Advanced Level)) | TargetExams

Solutions — Set 02 (Advanced Level)

Take free online mock test for National Institute of Open Schooling (NIOS) Class XII Chemistry (313) chapter 'Solutions'. 20 MCQs, 20 minutes, detailed solutions & score analysis.

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20 MCQs

Questions

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20 Mins

Duration

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20 Marks

Total Marks

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+1.0

Per Correct

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0.0

Negative Mark

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English

Language

Start Test Now (English Medium)

Instant Scorecard Step-by-Step Solutions NIOS Self-Learning Material (SLM) 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: Solutions

Class 12 Study Guide

Mastering Solutions 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 Solutions.	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 Solutions 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.

Which of the following statements correctly states Raoult's law for a solution of volatile liquids?

वाष्पशील द्रवों के विलयन के लिए राउल्ट के नियम (Raoult's law) का सही कथन निम्नलिखित में से कौन-सा है?

The total vapor pressure is independent of the mole fractions of the componentsकुल वाष्प दाब घटकों के मोल अंशों से स्वतंत्र होता है

For a solution of volatile liquids, the partial vapor pressure of each component in the solution is directly proportional to its mole fraction in the solution (p1 = p1° · χ1)वाष्पशील द्रवों के विलयन के लिए, विलयन में प्रत्येक घटक का आंशिक वाष्प दाब विलयन में उसके मोल अंश के समानुपाती होता है (p1 = p1° · χ1)

The partial vapor pressure of each component is inversely proportional to temperatureप्रत्येक घटक का आंशिक वाष्प दाब तापमान के व्युत्क्रमानुपाती होता है

The vapor pressure of the solution is always equal to the sum of the atmospheric pressuresविलयन का वाष्प दाब हमेशा वायुमंडलीय दाबों के योग के बराबर होता है

Correct Answer: Option B

Explanation:

According to Raoult's law (established in 1886 by François-Marie Raoult): For a solution of volatile liquids, the partial vapor pressure of each volatile component (say component 1) in the solution is directly proportional to its mole fraction (χ1) in the liquid phase: p1 ∝ χ1 => p1 = p1° · χ1, where p1° is the vapor pressure of pure component 1 at the given temperature. By Dalton's law of partial pressures, the total vapor pressure is: \(P_total = p1 + p2 = p1° · χ1 + p2° · χ2\).

राउल्ट के नियम के अनुसार: वाष्पशील द्रवों के विलयन में प्रत्येक घटक का आंशिक वाष्प दाब (p1) द्रव प्रावस्था में उसके मोल अंश (χ1) के समानुपाती होता है: p1 ∝ χ1 => p1 = p1° · χ1, जहाँ p1° उसी तापमान पर शुद्ध घटक 1 का वाष्प दाब है। कुल वाष्प दाब: \(P_total = p1 + p2 = p1°χ1 + p2°χ2 होता है\)।

Which of the following binary liquid mixtures forms a nearly ideal solution obeying Raoult's law over the entire range of concentrations?

निम्नलिखित में से कौन-सा द्विअंगी द्रव मिश्रण सांद्रता के संपूर्ण परास में राउल्ट के नियम का पालन करने वाला लगभग एक आदर्श विलयन (ideal solution) बनाता है?

Ethanol and Waterएथेनॉल और जल

Chloroform and Acetoneक्लोरोफॉर्म और ऐसीटोन

Phenol and Anilineफीनॉल और ऐनिलीन

n-Hexane and n-Heptanen-हेक्सेन और n-हेप्टेन

Correct Answer: Option D

Explanation:

An ideal solution is formed when the intermolecular attractive forces between the different components (A-B interactions) are practically identical in strength and nature to the interactions between the like molecules (A-A and B-B interactions). - n-Hexane and n-heptane are non-polar hydrocarbons of similar molecular sizes and structures; their mixing involves identical dispersion forces. Hence, they form an ideal solution with Δ_mix H = 0 and Δ_mix V = 0. - Other classic ideal solutions include benzene + toluene and bromoethane + chloroethane. - Ethanol + water shows positive deviation; chloroform + acetone and phenol + aniline show negative deviations.

एक आदर्श विलयन वह होता है जिसमें विलेय-विलायक (A-B) अंतराआण्विक आकर्षण बल, शुद्ध घटकों (A-A और B-B) के आकर्षण बलों के लगभग समान होते हैं। - n-हेक्सेन और n-हेप्टेन दोनों समान आकार और संरचना वाले अध्रुवीय हाइड्रोकार्बन हैं, अतः इनका मिश्रण एक आदर्श विलयन बनाता है जिसमें Δ_mix H = 0 और Δ_mix V = 0 होता है। - क्लोरोफॉर्म + ऐसीटोन और फीनॉल + ऐनिलीन ऋणात्मक विचलन दर्शाते हैं; एथेनॉल + जल धनात्मक विचलन दर्शाता है।

How Chapter-Wise Online CBT Tests Build Winning Habits for Future Competitive Exams

Focused chapter-wise CBT practice builds the speed, mental stamina, and analytical discipline required to ace CUET, JEE Main, NEET UG, NDA, CA Foundation, and College Entrance Exams.

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

Traditional paper tests take weeks to grade, by which time the student has forgotten their thought process. TargetExams provides instant scorecards and step-by-step solutions while the conceptual puzzle is still fresh.

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 National Institute of Open Schooling (NIOS) Class XII Chemistry (313) 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.

Solutions (Set 02 (Advanced Level))

20 MCQs • 20 Mins • 100% Free Practice Test

National Institute of Open Schooling (NIOS) Class XII Chemistry (313): Solutions Online Test (Set 02 (Advanced Level)) | TargetExams

Chapter Study Guide & In-Depth Notes

Chapter Overview & Core Concepts: Solutions