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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زیادہ تر پروٹسٹ ______ ہیں؟
Answer: Aquatic
Explanation Most protists are aquatic, meaning they live in water environments, such as oceans, rivers, lakes, and wetlands. Many protists are single-celled and microscopic , while others are multicellular and macroscopic.
میٹابولک رد عمل کی ____ اقسام ہیں۔
Answer: Two
Explanation There are indeed two main types of metabolic reactions: Anabolic reactions ( building molecules, requiring energy ) Catabolic reactions ( breaking down molecules, releasing energy )
Answer: Gain of electrons
Explanation A non-metal atom forms an anion (a negatively charged ion) by gaining one or more electrons. This means that the atom acquires additional electrons to form a negative ion.
کلورین کو _____ کی طرف سے بے گھر کیا جا سکتا ہے؟
Answer: F
Explanation Chlorine can be displaced by fluorine (F). This is because fluorine is more reactive than chlorine. As halogen reactivity decreases down the group in the periodic table.
انزائم کی سرگرمی ______ سے کم ہوئی؟
Answer: Inhibitor
Explanation Inhibitors are molecules that decrease the activity of enzymes , often by binding to a specific site on the enzyme. Activators are molecules that increase the activity of enzymes , often by binding to a specific site on the enzyme.
Answer: 90g of water
Explanation A 10% (w/w) sugar solution means that 10 grams of sugar (the solute) is dissolved in 90 grams of water (the solvent), making a total of 100 grams of solution. The percentage is calculated as : (10 g sugar / 100 g total) × 100% = 10% (w/w) So, 10 grams of sugar is dissolved in 90 grams of water.
درجہ بندی کے درجہ بندی میں اس اصطلاح کا انتخاب کریں جس میں فہرست میں موجود دیگر سبھی شامل ہوں؟
Answer: Class
Explanation In the taxonomic hierarchy , Class is the most inclusive and encompasses all the other terms: Class includes multiple Orders Order includes multiple Families Family includes multiple Genera (plural of Genus) Genus includes multiple Species
فی یونٹ وقت میں کیے جانے والے کام کو ______ کہا جاتا ہے؟
Answer: Power
Explanation Power is the work done per unit time , measured in watts (W). It represents the rate at which energy is transferred or work is done. Additional Information: Efficiency is the ratio of output to input energy. Energy is the ability to do work. Force is a push or pull that can cause an object to change its motion.
ایک جسم معمولی جھکاؤ کے بعد مستحکم توازن میں ہے اگر اس کا مرکز ثقل _____؟
Answer: Remains above the point of contact
Explanation When a body is tilted slightly , if its center of gravity remains above the point of contact , it will tend to return to its original position , restoring equilibrium. This is a characteristic of stable equilibrium. Key Points : A body is in unstable equilibrium after slight tilt if its center of gravity remains above the point of contact. A body is in neutral equilibrium when its center of gravity remains at same height.
انزائمز ______ ہیں؟
Answer: Protein in nature
Explanation Enzymes are biological molecules made up of proteins , which catalyze chemical reactions, speeding up metabolic processes in living organisms. Proteins provide the structure and active site for enzymes to bind substrates and facilitate chemical reactions.
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