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.
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.
Try each question before opening its answer. Record the concept behind each mistake and revisit it during your next practice session.
خون کی نالیاں جو جسم کے دوسرے حصوں سے دل تک خون لے جاتی ہیں ان کو _____ کہتے ہیں؟
Answer: Veins
Explanation Veins are the blood vessels that carry blood from other parts of the body back to the heart. They have one-way valves that prevent blood from flowing backwards and ensure it keeps moving towards the heart.
ہوا میں آواز کی رفتار ______ ہے؟
Answer: 343 m/s
Explanation The velocity of sound in air at sea level under standard conditions (around 15°C or 59°F) is approximately 343 meters per second (m/s) The speeds of sound in different materials: Air: 343 m/s Water: 1433 m/s Wood: 3300-3600 m/s Brick: 4176 m/s Steel: 6100 m/s Diamond: 12000 m/s
ایٹم کے سب سے بیرونی خول سے باہر نکلنے والے الیکٹرانک کو کیا کہا جاتا ہے؟
Answer: Free Electrons
Explanation The electrons that have been knocked out of the outermost shell of an atom are free electrons , which are able to move freely and conduct electricity.
ہر ایٹم کے نیوکلئس میں موجود پروٹانس کی مخصوص تعداد اس کو ____ کہتے ہیں؟
Answer: Atomic Number
Explanation Every element is identified by the number of protons in its nucleus. This number determines the identity of the element . It is written as Z in chemistry. It is always equal to the number of electrons in a neutral atom. This is called the atomic number . Last verified on 12-04-2026
مندرجہ ذیل میں سے کون سا آئسوٹوپ کینسر کے خلیوں کی نشوونما کو روکنے کے لیے ریڈیو تھراپی کے لیے استعمال ہوتا ہے؟
Answer: Cobalt - 60
Explanation Cobalt-60 is used in radiotherapy to stop the growth of cancer cells. It emits gamma rays that target and destroy malignant cells in cancer treatment.
اصل مقام یا جگہ جہاں ایک جاندار رہتا ہے اور دوبارہ پیدا ہوتا ہے وہ ____ ہے؟
Answer: Habitat
Explanation A habitat is the specific place where an organism lives and reproduces. It provides the food, water, shelter, and conditions necessary for survival.
تمام رگیں ڈی آکسیجن شدہ خون کو دل تک پہنچاتی ہیں سوائے؟
Answer: Pulmonary Vein
Explanation Pulmonary veins are the only veins that transport oxygenated blood to the heart. Specifically from the lungs to the left atrium.
عنصر کی علامت کے اوپر دکھائے گئے نمبر کو ____ کہتے ہیں؟
Answer: Atomic Number
Explanation The number shown above the symbol of an element on the periodic table is called the atomic number. This number represents the number of protons in the nucleus of an atom of that element, which uniquely identifies the element.
Answer: Voltmeter
Explanation - A voltmeter measures the potential difference (voltage) between two points in a circuit. - It is always connected in parallel to the component. - The SI unit of potential difference is the Volt (V). - Potential difference is the work done per unit charge to move a charge between two points. - Formula: V = W / Q - V = potential difference (volts) - W = work done (joules) - Q = charge (coulombs) - A voltmeter has high resistance so it doesn't draw current from the circuit.
"کیمیائی مرکب میں ہمیشہ وہی عناصر ہوتے ہیں جو ایک ہی تناسب یا تناسب میں اکٹھے ہوتے ہیں" ____ کا بیان ہے؟
Answer: Law of Constant Composition
Explanation The statement "A chemical compound always contains the same elements combined together in the same proportion or ratio " is a statement of the Law of Constant Composition. It is also known as the Law of Definite Proportions. This law was first discovered by Joseph Proust in 1797.
Found a mistake? Use “Report correction” in the practice tool or contact us with the question and a supporting source.