Chemistry Class 9th MCQs MCQs - General Science Practice | PakExamPoint

Practise Chemistry Class 9th MCQs MCQs in General Science. Attempt multiple-choice questions, check answers and revise related subtopics.

Chemistry Class 9th MCQs MCQs and revision practice

Study Chemistry Class 9th MCQs through multiple-choice questions in General Science. This subtopic contains 95 practice questions. Read the wording carefully, compare the options and attempt an answer before checking the solution in learning mode.

Use these Chemistry Class 9th MCQs MCQs to identify the facts, rules or methods you need to revise. Where an explanation is available, work through it and write down why your chosen option was correct or incorrect. Revisit difficult questions after reviewing your notes, then use exam mode for timed practice.

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Chemistry Class 9th MCQs: questions and answer review

Try each question before opening its answer. Record the concept behind each mistake and revisit it during your next practice session.

21. Deficiency of Vitamin D results in _____?

وٹامن ڈی کی کمی کے نتیجے میں کیا ہوتا ہے؟

Check answer and explanation

Answer: Rickets

Explanation Vitamin D is essential for healthy bones . Its deficiency leads to Rickets in children and Osteomalacia in adults. Sunlight is the best natural source of Vitamin D. Additional information : Deficiency effects : Bone pain Weak bones Skeletal deformities Other Vitamin Deficiencies : Vitamin A: Night blindness Vitamin C: Scurvy Vitamin B7 (Biotin): Hair fall Last verified on 17-01-2026

22. 4th and 5th period in periodic table are known as?

متواتر جدول میں چوتھے اور پانچویں دور کو کیا کہا جاتا ہے؟

Check answer and explanation

Answer: Long period

Explanation The 4th and 5th periods in the periodic table are known as the long periods. These periods contain 18 elements each , making them the longest periods in the periodic table. Important Points: Short periods : 1st and 2nd periods (2 and 8 elements, respectively) Long periods : 4th and 5th periods (18 elements each) Normal periods : 3rd and 6th periods (8 and 12 elements, respectively)

23. Bond which involve 3 shared electron pairs is a ______?

بانڈ جس میں 3 مشترکہ الیکٹران کے جوڑے شامل ہیں ایک ______ ہے؟

Check answer and explanation

Answer: Triple covalent bond

Explanation A triple covalent bond is a chemical bond that involves the sharing of three pairs of electrons between two atoms. This type of bond is typically found in molecules where three pairs of electrons are shared, resulting in a strong and stable bond.

24. The elements of VIIA group are known as ______?

Check answer and explanation

Answer: Halogens

Explanation The elements in group VIIA of the periodic table are called halogens. This group consists of the following elements : Fluorine (F) Chlorine (Cl) Bromine (Br) Iodine (I) Astatine (At) Tennessine (Ts)

25. Which Halogen exists in liquid state?

کون سا ہالوجن مائع حالت میں موجود ہے؟

Check answer and explanation

Answer: Br2

Explanation Bromine (Br2) is the only halogen that exists in a liquid state at room temperature. It is a reddish-brown liquid with a melting point of -7.2°C or 19°F.

26. Interaction between highly electron deficient hydrogen and highly electronegative atom is called?

انتہائی الیکٹران کی کمی والے ہائیڈروجن اور انتہائی برقی منفی ایٹم کے درمیان تعامل کو _____ کہتے ہیں؟

Check answer and explanation

Answer: Hydrogen bond

Explanation A hydrogen bond is a type of intermolecular force that arises between a highly electronegative atom ( such as oxygen, nitrogen, or fluorine ). A hydrogen atom that is bonded to a highly electronegative atom. This interaction is typically weak compared to covalent bonds. But it is strong enough to influence the physical and chemical properties of molecules.

27. Which one of the following is Barium?

مندرجہ ذیل میں سے کون سا بیریم ہے؟

Check answer and explanation

Answer: Ba

Explanation Ba is the chemical symbol for Barium , a chemical element with atomic number 56. It is a soft, silvery-white alkaline earth metal.

28. Example of heterogeneous mixture is _______?

متضاد مرکب کی مثال _______ ہے؟

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Answer: Sand and water

Explanation A heterogeneous mixture is a mixture in which the components have different physical properties, such as color, texture, or phase (solid, liquid, or gas). In a heterogeneous mixture, the components are not uniformly distributed, and you can often see the individual components.

29. De Broglie extend the wave particle duality to electron in ______?

ڈی بروگلی نے ______ میں الیکٹران میں لہر کے ذرہ دوہرے کو بڑھایا؟

Check answer and explanation

Answer: 1923

Explanation De Broglie extended the wave- particle duality to electrons in 1923. He proposed that particles such as electrons exhibit wave-like properties. A hypothesis that was later confirmed experimentally and became a fundamental concept in quantum mechanics.

30. If we dissolve sand into the water, then the mixture is said to be _______?

اگر ہم ریت کو پانی میں گھولتے ہیں تو اس مرکب کو _______ کہا جاتا ہے؟

Check answer and explanation

Answer: Suspension

Explanation When sand is added to water, it does not dissolve , but instead forms a mixture where the sand particles settle at the bottom of the container. This type of mixture is called a suspension , where the particles of the solute (sand) do not dissolve in the solvent (water) and instead remain suspended.

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