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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مندرجہ ذیل میں سے کون سا ہومو ایٹم ہے؟
Answer: H2
Explanation H2 is only a homo atomic [homo: same] molecule. Rest three are hetero atomic [hetero: different] molecules).
درختوں کی کٹائی کو _____ کہتے ہیں؟
Answer: Deforestation
Explanation Deforestation is the permanent removal of forests , usually as a result of human activities like logging, agriculture, urbanization, and mining. It leads to the loss of habitats , biodiversity, and ecosystem services, as well as contributing to climate change.
میٹابولک رد عمل ______ ہیں؟
Answer: Both A and B
Explanation Metabolic reactions are both constructive (anabolic) and destructive (catabolic) reactions.
الیکٹرانک کنفیگریشن _______ کی تقسیم ہے؟
Answer: Electron
Explanation Electronic configuration refers to the distribution of electrons within an atom or molecule. It shows how the electrons are arranged in different energy levels (shells) and sublevels (orbitals) around the nucleus.
مکھن حل _____ کی مثال ہے؟
Answer: Liquid-solid
Explanation Butter is a mixture of solid fat particles (solute) dissolved in liquid oil (solvent), making it a solid-liquid solution. This type of solution is also known as a sol or a gel.
سکرین کے اس مواد کا نام بتائیں جو رتھر فورڈ ایٹم ماڈل میں استعمال ہوتا ہے؟
Answer: Zinc sulphide
Explanation In Rutherford's famous experiment , known as the "Gold Foil Experiment" or " Rutherford's Scattering Experiment ", a thin layer of zinc sulphide (ZnS) was used as the screen to detect the scattered alpha particles. Zinc sulphide is a phosphor that emits light when struck by radiation, allowing Rutherford to visualize the trajectory of the alpha particles.
سب سے زیادہ ارتکاز میں مطلوبہ غذائی اجزاء کو ______ کہتے ہیں؟
Answer: Macronutrients
Explanation Macronutrients are the nutrients that are needed in the highest concentration by living organisms. They include carbohydrates, proteins, and fats , which provide energy and support growth and maintenance of tissues.
زمین کی کشش ثقل کا میدان _____ کی طرف ہے؟
Answer: Towards the Earth
Explanation The gravitational field of Earth is a vector field that points towards the center of the Earth. It representing the direction of the gravitational force that the Earth exerts on objects near its surface. This means that the gravitational field is directed towards the Earth, pulling objects towards its center.
نوبل گیسیں مستحکم ہیں کیونکہ ان میں _____؟
Answer: 8 electrons in valence shell
Explanation Noble gases are stable because their outermost energy level is full, meaning they have eight electrons in their valence shell. This full outer energy level gives them a stable electronic configuration, similar to that of the noble gases, and makes them unreactive.
پودوں کا خلیہ پانی کھو دیتا ہے اور سائٹوپلازم سکڑ جاتا ہے جس کو _____ کہتے ہیں؟
Answer: Plasmolysis
Explanation Plasmolysis is the process by which a plant cell loses water and its cytoplasm shrinks, causing the cell membrane to pull away from the cell wall. This can occur due to osmotic stress , such as when a plant is exposed to high concentrations of salt or sugar.
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