9th Class Chemistry Chapter 1 Online Test: 25 MCQs with Answers

This 9th class chemistry chapter 1 online test covers Chapter 1 of the Class 9 Chemistry course, States of Matter. 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 1 rather than one section, and most of them ask you to apply something rather than simply recall it. Expect to be doing the following:

  • Which state has definite volume but no definite shape, and why the kinetic model predicts it.
  • Comparing rates of diffusion between gases and liquids, and what changes the rate.
  • The difference between evaporation and boiling, and what happens to boiling point when pressure drops.
  • What stays constant and what changes while a solid melts.
  • Naming allotropes and matching them to the right element.
  • Telling a crystalline solid from an amorphous one.

Quick Recall Before You Start

These are the points States of Matter questions turn on most often. Read them once, then begin:

  • Gases diffuse fastest because their particles are far apart and move quickly.
  • Boiling happens at one temperature; evaporation happens at any temperature from the surface.
  • Temperature holds steady during melting and boiling because the energy goes into breaking attractions.
  • Carbon and sulphur are the two allotropy examples the chapter uses.

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:

  • An option offering a rising temperature during melting.
  • Swapping which state has definite shape and which has definite volume.
  • An allotrope belonging to the other element.

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 1 Online Test

Most of Chapter 1 is reasoning about particles rather than calculating, so picture what the molecules are doing before you choose. 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.

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Class 9 Chemistry Chapter 1 Online Test — States of Matter (English Medium)

1 / 25

Matter is present in neon signs in the state of:

2 / 25

Hazardous effects of shopping bags are studied in:

3 / 25

The man-made polymer is:

4 / 25

The crystals of which substance has rhombic shape?

5 / 25

Which liquid among the following is a colloidal solution?

6 / 25

Which of the following is a heterogeneous mixture?

7 / 25

A state of matter whose properties are between those of liquids and crystalline solids:

8 / 25

When the tiny visible particles of a substance are dispersed through a medium, the mixture is named as:

9 / 25

A solution of KClO₃ has a solubility of about 13.2 g per 100 cm³ at 40 °C. How its solubility will be affected, if you decrease the temperature?

10 / 25

You are studying the rate of hydrolysis of starch under different conditions of temperature. In which branch of chemistry this topic will fall?

11 / 25

Plasma can be considered as:

12 / 25

Which is the only state of matter that does not need any container to be stored?

13 / 25

The solubility of a solute is the amount of solute which can dissolve at a particular temperature in:

14 / 25

How much sodium chloride dissolves in 100 g of water at 20 °C to give a saturated solution?

15 / 25

At 20 °C the solubility of table sugar in water is far greater than that of sodium chloride because:

16 / 25

Which statement about fullerene C₆₀ is correct?

17 / 25

The element oxygen exists in two allotropic forms, namely:

18 / 25

In water (H₂O), hydrogen and oxygen are present in a fixed ratio by weight of:

19 / 25

Noble gases such as helium (He) and argon (Ar) exist as:

20 / 25

Sand (SiO₂) is given in the book as an example of a compound which exists as:

21 / 25

Which pair is given in the chapter as the common examples of colloidal solutions?

22 / 25

When a suspension is filtered, its solute particles:

23 / 25

A solution in which the maximum amount of the solute has been dissolved in a particular amount of a solvent at a particular temperature is called:

24 / 25

Soda water bottles are stored in the refrigerator because:

25 / 25

Element sulphur exists in two crystalline allotropic forms. Which of them is the more stable form?

Your score is

0%

Chapter 1 Online Test — Urdu Medium

Urdu medium students can attempt the same Chapter 1 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.

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Class 9 Chemistry Chapter 1 Online Test — States of Matter (Urdu Medium)

1 / 25

نیون سائنز (Neon Signs) میں مادہ کس حالت میں موجود ہے؟

2 / 25

شاپنگ بیگز کے مضر اثرات کا مطالعہ کیمسٹری کی کس شاخ میں کیا جاتا ہے؟

3 / 25

کون سا پولیمر انسان کا بنایا ہوا ہے؟

4 / 25

کس ایلیمنٹ کے کرسٹلز کی شکل روہمبک ہے؟

5 / 25

درج ذیل میں سے کون سی مائع کولائیڈل سلوشن ہے؟

6 / 25

درج ذیل میں سے کون سا مکسچر غیر ہوموجینیس ہے؟

7 / 25

مادہ کی ایسی حالت جو مائع اور ٹھوس کی درمیانی کیفیت شمار ہوتی ہے؟

8 / 25

جب کسی شے کے چھوٹے نظر آنے والے ذرات کو سالوینٹ میں ملایا جاتا ہے تو کیا بنتا ہے؟

9 / 25

پوٹاشیم کلورئیٹ (KClO₃) کی پانی میں حل پذیری 40 ڈگری سینٹی گریڈ پر 13.2 گرام ہے۔ درجہ حرارت کم کرنے سے اس کی حل پذیری میں کیا فرق پڑے گا؟

10 / 25

آپ ایک آرگینک کمپاؤنڈ، سٹارچ اور پانی کے درمیان ہونے والی ری ایکشن کی رفتار کا مطالعہ کر رہے ہیں۔ یہ مضمون کیمسٹری کی کس برانچ سے متعلق ہے؟

11 / 25

پلازمہ کو کس چیز کے طور پر سمجھا جاتا ہے؟

12 / 25

مادہ کی وہ کون سی واحد حالت ہے جسے رکھنے کے لیے کسی برتن کی ضرورت نہیں ہوتی؟

13 / 25

کسی سولیوٹ کی سالوبیلٹی وہ مقدار ہے جو ایک مخصوص درجہ حرارت پر کتنے سالوینٹ میں حل ہو سکے؟

14 / 25

20°C پر 100 گرام پانی میں کتنا سوڈیم کلورائیڈ حل ہو کر سیچوریٹڈ سلوشن بناتا ہے؟

15 / 25

20°C پر چینی کی پانی میں سالوبیلٹی سوڈیم کلورائیڈ سے کہیں زیادہ ہونے کی وجہ یہ ہے کہ:

16 / 25

فلرین C₆₀ کے بارے میں کون سا بیان درست ہے؟

17 / 25

ایلیمنٹ آکسیجن دو ایلوٹراپک فارمز میں پایا جاتا ہے، وہ ہیں:

18 / 25

پانی (H₂O) میں ہائیڈروجن اور آکسیجن کے ماسز کی مستقل نسبت ہے:

19 / 25

نوبل گیسیں مثلاً ہیلیم (He) اور آرگون (Ar) کس شکل میں پائی جاتی ہیں؟

20 / 25

ریت (SiO₂) کتاب میں ایسے کمپاؤنڈ کی مثال ہے جو کس شکل میں موجود ہوتا ہے؟

21 / 25

باب میں کولائیڈل سلوشن کی عام مثالوں کے طور پر کون سا جوڑا دیا گیا ہے؟

22 / 25

جب کسی سسپنشن کو فلٹر کیا جائے تو اس کے سولیوٹ کے ذرات:

23 / 25

ایسا سلوشن جس میں ایک خاص درجہ حرارت پر ایک مخصوص مقدار سالوینٹ میں سولیوٹ کی زیادہ سے زیادہ مقدار حل ہو چکی ہو، کہلاتا ہے:

24 / 25

سوڈا واٹر کی بوتلیں ریفریجریٹر میں کیوں رکھی جاتی ہیں؟

25 / 25

سلفر ایلیمنٹ دو قلمی ایلوٹراپک فارمز میں پایا جاتا ہے۔ ان میں سے زیادہ سٹیبل کون سی ہے؟

Your score is

0%

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 1 the part worth securing first is the kinetic model, since nearly everything else in the chapter follows from it. 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

Which state of matter has a definite volume but no definite shape?

A liquid. Its particles are close enough to fix the volume but free enough to slide past one another, so the liquid takes the shape of whatever contains it.

Does the temperature rise while ice is melting?

No. It stays at the melting point until all the ice has gone, because the heat supplied is breaking the forces holding the lattice together rather than speeding the particles up.

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 1 test paper is a 36-mark bilingual practice paper with an MCQ answer key, and the Chapter 1 exercise questions give you the solved exercise for the same chapter. Carry on with Chapter 2 online test (Atomic Structure). 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.

Other subjects: Physics, Biology and Maths chapter tests, Physics, Maths and Biology guess papers, or the Class 9 hub.

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