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Exam Q1. Which of the following is a characteristic feature of all members of the phylum Porifera? A. Presence of nematocysts B. Canal system and ostia C. Jointed appendages D. Dorsal hollow nerve cord Q2. In Cnidarians, the term ‘polyp’ refers to a form that is: A. Free-swimming and umbrella-shaped B. Sessile and cylindrical C.

📘 Study MCQs Q1. Which of the following is a characteristic feature of all members of the phylum Porifera? A. Presence of nematocysts B. Canal system and ostia C. Jointed appendages D. Dorsal hollow nerve cord AnswerB. Canal system and ostiaDetails ClosePorifera (sponges) have a canal system with tiny pores called ostia and a larger

📘 Study MCQs Q1. A concave mirror of focal length 15 cm forms an image at 30 cm from the mirror. What is the object distance? 30 cm 20 cm 15 cm 10 cm Answer30 cmDetails CloseUsing the mirror formula 1/f = 1/v + 1/u, with f = -15 cm (concave mirror) and v =

Diversity In Life | Take A Quiz Test | Start Chapter 1: The Living World (Diversity of Life) 1.1 What is Living? Living organisms are not just a collection of molecules. They are distinct from non-living things because they possess certain key characteristics: Key Point: Viruses are an exception. They show reproduction (inside a host)

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📘MCQs: Balancing Chemical Equations | रासायनिक समीकरणों का संतुलन

1. किसी रासायनिक समीकरण को संतुलित (Balanced) करने का मुख्य कारण क्या है?The main purpose of balancing a chemical equation is:A. अभिक्रिया को तेज़ करना (To speed up reaction)B. द्रव्यमान संरक्षण नियम (Law of conservation of mass) ✅C. ताप बढ़ाना (Increase temperature)D. उत्प्रेरक जोड़ना (Add catalyst)Answer: द्रव्यमान संरक्षण नियम (Law of conservation of mass) 2.

📘 Types of Chemical Reactions – MCQs (Class 10) 1. जब दो या अधिक पदार्थ मिलकर एक नया पदार्थ बनाते हैं, वह कहलाता है: When two or more substances combine to form a single product, it is called:A. अपघटन अभिक्रिया (Decomposition reaction)B. संयोजन अभिक्रिया (Combination reaction) ✅C. विस्थापन अभिक्रिया (Displacement reaction)D. द्विविस्थापन अभिक्रिया (Double displacement

🤖 Ask AI 📘 Class 10 – Chemical Reactions (MCQs) Chemical Reactions and Equations MCQs Class 10 🔰 परिचय (Introduction) इस पोस्ट में Class 10 Science के अध्याय Chemical Reactions and Equations से संबंधित महत्वपूर्ण MCQs प्रस्तुत किए गए हैं। ये सभी बहुविकल्पीय प्रश्न NCERT पाठ्यक्रम पर आधारित हैं और CBSE तथा विभिन्न राज्य बोर्डों