This 9th class chemistry chapter 13 online test covers Chapter 13 of the Class 9 Chemistry course, Laboratory and Practical Skills. It has 25 multiple-choice questions, shown one at a time, and it marks itself the moment you finish. There is no timer and no sign-up. When you press finish you get your score, and every question is shown again with your answer, the correct option and a short explanation of why that option is right. An Urdu medium version of the same test is further down this page.
What the 25 Questions Test
The questions are spread across the whole of Chapter 13 rather than one section, and most of them ask you to apply something rather than simply recall it. Expect to be doing the following:
- Matching a hazard symbol to what it warns about.
- Choosing the right apparatus for a stated measurement.
- Picking the correct separation technique for a given mixture.
- Calculating an Rf value from distances.
- Identifying the correct way to read a burette or a measuring cylinder.
- Spotting an unsafe laboratory practice in a described procedure.
Quick Recall Before You Start
These are the points Laboratory and Practical Skills questions turn on most often. Read them once, then begin:
- Add acid to water, never the reverse.
- Read the bottom of the meniscus at eye level.
- Rf is solute distance over solvent front distance, and is always below one.
- Filtration separates insoluble solids; distillation separates liquids by boiling point.
Traps Hidden in the Wrong Options
In a well-built multiple-choice test the wrong answers are not random; each one is placed there because students genuinely believe it. In this chapter look out for:
- Water being added to concentrated acid.
- An Rf value greater than one.
- The wrong separation technique for the mixture described.
How the Test Works
- 25 questions, one at a time, with Next and Previous buttons.
- No timer, so you can work a calculation out on paper first.
- Automatic marking as soon as you finish.
- Answer review showing the correct option and an explanation for every question.
- Retake as often as you like; your score is not stored anywhere.
Start the Chapter 13 Online Test
Chapter 13 describes practical situations, so imagine yourself at the bench and ask what would actually go wrong. Read each question to the end before looking at the options, because one word such as “only”, “always” or “molten” can decide which answer is correct. Aim for 20 out of 25 or better before moving on.
Chapter 13 Online Test — Urdu Medium
Urdu medium students can attempt the same Chapter 13 test with every question, option and explanation written in Urdu. It behaves exactly like the English test above: 25 questions one at a time, no timer, and a full answer review at the end.
What to Do With Your Score
The score matters less than the review that follows it. Note the topic behind each wrong answer rather than the question number, and if several come from one part of the chapter, revise that part alone. For Chapter 13 the part worth securing first is the safety rules and apparatus, which carry marks in the practical exam too. Retake the test a day or two later rather than straight away, then move to the written paper, where you have to produce the answer instead of recognising it.
Frequently Asked Questions
Why must acid always be added to water?
Because dilution releases a lot of heat. Adding acid slowly into a large volume of water spreads that heat safely, while pouring water into concentrated acid can make it boil and spit.
Can an Rf value ever be greater than one?
No. The solute cannot travel further than the solvent front it is carried by, so the ratio is always less than one. An answer above one is always wrong.
Is this test free?
Yes. There is no sign-up, no limit on retakes and nothing is locked. Your score is not saved or shared.
Related Class 9 Chemistry Resources
Once the MCQs feel comfortable, move to writing. The Chapter 13 test paper is a 36-mark bilingual practice paper with an MCQ answer key, and the Chapter 13 solved notes give you the solved exercise for the same chapter. Carry on with Chapter 12 online test (Empirical Data Collection and Analysis). Browse every Class 9 Chemistry online test, all Class 9 Chemistry test papers and the Class 9 Chemistry notes, or open the Class 9 Chemistry page for everything in one place.
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