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

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

General Science Class 9 MCQs MCQs and revision practice

Study General Science Class 9 MCQs through multiple-choice questions in General Science. This subtopic contains 366 practice questions. Read the wording carefully, compare the options and attempt an answer before checking the solution in learning mode.

Use these General Science Class 9 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.

Continue your revision with related topics: Biology Class 10th MCQs MCQs, Biology Class 9th MCQs MCQs, Chemistry Class 10th MCQs MCQs, Chemistry Class 9th MCQs MCQs, General Science Class 10 MCQs MCQs, General Science Class 4 MCQs MCQs, General Science Class 5 MCQs MCQs, General Science Class 6 MCQs MCQs.

Return to all General Science topics to choose your next area of study. Read the MCQ study guide to plan your revision, or try a General Science practice quiz.

General Science Class 9 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.

251. Weigh of a body can be measured using a spring balance, it differs from place to place because of variation in ______?

جسم کا وزن موسم بہار کے توازن کا استعمال کرتے ہوئے ناپا جا سکتا ہے، یہ ______ میں مختلف ہونے کی وجہ سے جگہ جگہ مختلف ہوتا ہے؟

Check answer and explanation

Answer: Gravitational pull

Explanation The weight of a body is the force exerted on it by gravity. It depends on the gravitational pull of the planet or moon it is on. Since the gravitational pull varies from place to place (it is stronger near the surface of the Earth than on a mountain, and weaker on the Moon than on the Earth), the weight of a body also varies.

252. Which of the following does not affect the boiling point?

مندرجہ ذیل میں سے کون سا نقطہ ابلتے کو متاثر نہیں کرتا؟

Check answer and explanation

Answer: Initial temperature of liquid

Explanation The initial temperature of a liquid does not affect its boiling point. The boiling point is the temperature at which a liquid changes state to a gas at a given pressure. It is a physical property of the substance itself.

253. The branch of Physics which deals with heat and temperature, and their relation to the energy and work?

وہ طبیعیات کی شاخ جو حرارت اور درجہ حرارت اور ان کے توانائی اور کام سے تعلق کا مطالعہ کرتی ہے؟

Check answer and explanation

Answer: Thermodynamics

Explanation Thermodynamics studies the relationship between heat, temperature, energy, and work . Additional information : First law : Energy cannot be created or destroyed (Law of energy conservation) Second law : Heat flows from hot to cold spontaneously Third law : Absolute zero cannot be reached Zeroth law : Establishes temperature measurement Applications : Engines, refrigerators, heat pumps, and power plants Last verified on 13-03-2026

254. The atomic mass of an element expressed in gram is ______?

گرام میں ظاہر کردہ عنصر کا جوہری وزن ______ ہے؟

Check answer and explanation

Answer: Gram atomic mass

Explanation Gram atomic mass (GAM) is the atomic mass of an element expressed in grams. It represents the mass of one mole of atoms of that element.

255. All are sources of calcium except?

تمام کیلشیم کے ذرائع ہیں سوائے؟

Check answer and explanation

Answer: Red meat

Explanation Red meat is a good source of protein and other nutrients. It is not a significant source of calcium.

256. During which process a gas becomes a liquid?

گیس کس عمل کے دوران مائع بن جاتی ہے؟

Check answer and explanation

Answer: Condensing

Explanation Condensing is the process by which a gas changes state to become a liquid. This occurs when the temperature and pressure of the gas are reduced to the point where the molecules slow down and come together to form a liquid. Key Points: Melting is the process where a solid becomes a liquid. Freezing is the process where a liquid becomes a solid. Boiling is the process where a liquid becomes a gas.

257. Chromosomes consist of two genetically identical copies of thread called?

کروموسوم دھاگے کی دو جینیاتی طور پر ایک جیسی کاپیوں پر مشتمل ہوتے ہیں جنہیں ____ کہا جاتا ہے؟

Check answer and explanation

Answer: Chromatids

Explanation Chromatids are the two genetically identical copies of a chromosome that are joined at the centromere. They are made up of chromatin and contain the same genetic information. During cell division , the chromatids separate, and each becomes a separate chromosome.

258. If nucleon number of potassium is 39, number of neutrons will be _______?

اگر پوٹاشیم کا نیوکلیون نمبر 39 ہے تو نیوٹران کی تعداد _______ ہوگی؟

Check answer and explanation

Answer: 20

Explanation The nucleon number (mass number) of Potassium is 39, and the atomic number (number of protons) is 19. To find the number of neutrons, subtract the number of protons from the nucleon number: 39 (nucleon number) - 19 (proton number) = 20 So, the number of neutrons in Potassium-39 is 20.

259. Solubility is usually expressed in grams of the solute dissolved in ________ gram of a solvent.

محلولیت کا اظہار عام طور پر سالوینٹ کے ________ گرام میں تحلیل ہونے والے محلول کے گرام میں ہوتا ہے۔

Check answer and explanation

Answer: 100 grams

Explanation Solubility is typically expressed in grams of solute per 100 grams of solvent, denoted as g/100g or g/100mL. This unit is called the percentage concentration or percentage composition.

260. Plant utilizes simple inorganic molecules (CO2 and H2O) to prepare _____?

پلانٹ _____ کی تیاری کے لیے سادہ غیر نامیاتی مالیکیولز کا استعمال کرتا ہے؟

Check answer and explanation

Answer: Glucose and oxygen

Explanation Plants, algae, and some bacteria use photosynthesis to convert simple inorganic molecules like carbon dioxide (CO2) and water (H2O) into glucose (a type of sugar) and oxygen (O2). This process is essential for life on Earth , as it provides energy and organic compounds for food chains.

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