Practise General Science Class 9 MCQs MCQs in General Science. Attempt multiple-choice questions, check answers and revise related subtopics.
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.
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بیماریوں کی تشخیص اور علاج کی سائنس کو کیا کہتے ہیں؟
Answer: Both B and C
Explanation Medicine involves the diagnosis and treatment of diseases. Surgery is a branch of medicine focused on operative procedures. Both fields are crucial in the overall treatment and management of diseases.
انزائم کا چھوٹا حصہ جہاں سبسٹریٹ انزائم کے ساتھ منسلک ہوتا ہے جسے _____ کہا جاتا ہے؟
Answer: Active site
Explanation The active site is a small region on the surface of an enzyme where the substrate binds , allowing the enzyme to catalyze the chemical reaction. It is a highly specific region that is shaped to fit the substrate , allowing for efficient binding and catalysis.
خالی شاپنگ کارٹ کو بھری ہوئی ٹوکری کے مقابلے میں دھکیلنا آسان ہے کیونکہ بھری ہوئی ٹوکری میں خالی سے زیادہ مقدار ہوتی ہے۔ اس کا اظہار ______ سے کیا جا سکتا ہے؟
Answer: F ∝ m
Explanation This is a statement of Newton's second law of motion , which states that the force (F) required to accelerate an object is proportional to its mass (m).
کروموسوم دھاگے کی طرح ہیں جیسے ڈھانچے _____ کے وقت ظاہر ہوتے ہیں؟
Answer: Cell division
Explanation Chromosomes are thread-like structures that appear during cell division, specifically during the prophase stage of mitosis or meiosis. They are made up of condensed chromatin and carry genetic information from one generation of cells to the next.
مندرجہ ذیل میں سے کون سا بیان درست ہے؟
Answer: Reduction occurs at cathode
Explanation In an electrochemical cell , reduction occurs at the cathode (positive electrode), where electrons are gained by the oxidized species , causing it to be reduced. Meanwhile, oxidation occurs at the anode (negative electrode), where electrons are lost by the reduced species , causing it to be oxidized.
الیکٹران کے باہمی اشتراک سے بننے والا بانڈ ______ ہے؟
Answer: Covalent bond
Explanation A covalent bond is a chemical bond formed by the mutual sharing of electrons between two atoms. This type of bond typically occurs between nonmetal atoms , such as in molecules and organic compounds.
سیل جھلی _____ پرت پر مشتمل ہے۔
Answer: Double
Explanation The cell membrane is also known as the plasma membrane. It is composed of a double layer of lipids , specifically phospholipids.
اگر پروٹون نمبر 19 ہے تو الیکٹران کی ترتیب ______ ہوگی؟
Answer: 2, 8, 8, 1
Explanation The atomic number 19 corresponds to the element Potassium (K). The electron configuration of Potassium is : 1s² 2s² 2p⁶ 3s¹ Which can be simplified to: 2, 8, 8, 1 .
وولووکس _______ کی پولی فیلیٹک جینس ہے؟
Answer: Green algae
Explanation Volvox is a genus of green algae that includes about 20 species of aquatic, photosynthetic organisms. They are characterized by their spherical or ellipsoidal shape and are typically found in freshwater environments. Volvox species are known for their unique colony structure , which consists of a hollow sphere of cells surrounding a central cavity.
کشش ثقل ہمیشہ ______ ہے؟
Answer: Attractive
Explanation Gravitational force is always attractive , never repulsive. According to Newton's law of universal gravitation , every point mass attracts every other point mass by a force acting along the line intersecting both points. This means that gravity always pulls objects towards each other, never pushes them apart.
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