Practise General Science Class 7 MCQs MCQs in General Science. Attempt multiple-choice questions, check answers and revise related subtopics.
Study General Science Class 7 MCQs through multiple-choice questions in General Science. This subtopic contains 255 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 7 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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ایک تبدیلی جو کسی مادّے کی ساخت کو بدل دیتی ہے ____ کے نام سے جانا جاتا ہے؟
Answer: Chemical Change
Explanation A chemical change , also known as a chemical reaction. It is a process that alters the composition of one or more substances, resulting in the formation of new substances with different properties.
وہ سرکٹ جو کرنٹ کے لیے دو یا زیادہ راستے فراہم کرتا ہے ____ کہلاتا ہے؟
Answer: Parallel Circuit
Explanation In a parallel circuit , each branch has its own path for current to flow. If one branch is interrupted, the other branches will continue to operate normally.
کسی عنصر کے آئسوٹوپس کس میں یکساں ہوتے ہیں؟
Answer: Atomic number
Explanation Isotopes are atoms of the same element that have: The same atomic number (Z) → same number of protons Different mass numbers → different number of neutrons This means they behave chemically the same but differ in mass. Last verified on 13-03-2026
پانی میں نمک کی مقدار بہت کم ہوتی ہے؟ ____
Answer: Freshwater
Explanation Freshwater is water that contains a very low amount of salt, typically less than 1% salinity. Examples of freshwater sources include rivers, lakes, streams, and underground aquifers.
مندرجہ ذیل ستاروں میں سے کون سا سرخ اور نارنجی ستاروں سے زیادہ گرم ہے؟
Answer: Blue
Explanation Blue stars are hotter than red and orange stars. The temperature of stars increases from red to orange to yellow to white to blue, with blue stars being the hottest.
مٹی کی تہوں میں آلودگی کے جمع ہونے کی شرح کا تعین کرنے کے لیے کون سا آئسوٹوپ استعمال کیا جاتا ہے؟
Answer: Lead - 210
Explanation Lead-210 is used to determine the accumulation rates of pollutants in layers of soil. It helps in studying sedimentation rates and the historical deposition of pollutants.
ای۔سی۔جی کا استعمال _____ کی بیماری کی تشخیص کے لیے کیا جاتا ہے؟
Answer: Heart
Explanation ECG (Electrocardiogram) is a test used to measure the electrical activity of the heart . It is commonly used for the diagnosis of heart-related ailments, such as: Arrhythmias (irregular heart rhythms) Coronary artery disease Cardiac arrests Heart failure
اگر کوئی چیز روشنی کے ساتوں رنگوں کو جذب کر لیتی ہے تو وہ ________ رنگ میں ظاہر ہوتی ہے۔
Answer: Black
Explanation If an object absorbs all seven colors of light (i.e., all the wavelengths of visible light), it appears black . This is because no light is being reflected , and our eyes perceive the absence of light as black. When an object reflects all the component colors of light, it appears white . Last verified on 18-03-2026
مندرجہ ذیل میں سے کون سا ہاضمے کا کام نہیں ہے؟
Answer: Filtration
Explanation Filtration is not part of digestion ; it occurs mainly in the kidneys for removing waste from blood. Additional information : Main functions of the digestive system: Ingestion – taking in food Propulsion – swallowing and peristalsis Mechanical processing – chewing and churning Chemical digestion – breaking down molecules with enzymes Absorption – nutrients absorbed into blood or lymph Last verified on 13-03-2026
سفید روشنی کے اجزاء کے رنگوں میں تقسیم ہونے کو ____ کہتے ہیں؟
Answer: Dispersion of light
Explanation Dispersion of light refers to the splitting of white light into its component colors, which are also known as the visible spectrum. This occurs when light passes through a medium with a refractive index that varies with wavelength, such as a prism.
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