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Total Marks: 65 Time Allowed: 2 Hours 20 Minutes Section A: MCQs (12 Marks, 20 Minutes) (Each MCQ carries 1 mark.) 1. Which of the following is an alkali metal? a) Magnesium b) Calcium c) Sodium d) Iron 2. What is the empirical formula of glucose (C₆H₁₂O₆)? a) CHO b) C₆H₁₂O₆ c) CH₂O d) C₂H₄O₂ … Read more
Total Marks: 65 Time Allowed: 2 Hours 20 Minutes — Section A: MCQs (12 Marks, 20 Minutes) (Each MCQ carries 1 mark.) 1. Which element is present in all organic compounds? a) Hydrogen b) Oxygen c) Carbon d) Nitrogen 2. What is the common name for calcium sulfate dihydrate? a) Gypsum b) Limestone c) Quicklime … Read more
Total Marks: 65 Time Allowed: 2 Hours 20 Minutes Section A: MCQs (12 Marks, 20 Minutes) (Each MCQ carries 1 mark.) 1. What is the molecular formula of ethanoic acid? a) CH₄ b) C₂H₄O₂ c) C₂H₆O d) C₆H₆ 2. Which gas is produced when calcium carbonate reacts with hydrochloric acid? a) Oxygen b) Carbon dioxide … Read more
Total Marks: 65 Time Allowed: 2 Hours 20 Minutes Section A: MCQs (12 Marks, 20 Minutes) 1. Which metal is extracted from … Read more
Total Marks: 65 Time Allowed: 2 Hours 20 Minutes Section A: MCQs (12 Marks, 20 Minutes) (Each MCQ carries 1 mark.) ⦁ Which process is used to concentrate sulfur ores? a) Froth flotation b) Roasting c) Electrolysis d) Hydration ⦁ What is the molecular formula of benzene? a) C₂H₆ b) C₃H₈ c) C₆H₆ d) C₆H₁₂ … Read more
Total Marks: 65 Time Allowed: 2 Hours 20 Minutes Section A: MCQs (12 Marks, 20 Minutes) … Read more
Total Marks: 65 Time Allowed: 2 Hours 20 Minutes — Section A: MCQs (12 Marks, 20 Minutes) 1. Which of the following is an example of an exothermic reaction? a) Melting of ice b) Photosynthesis c) Combustion of methane d) Electrolysis of water 2. The functional group in alcohols is: a) –COOH b) –CHO c) … Read more
Total Marks: 65 Time Allowed: 2 Hours 20 Minutes Section A: MCQs (12 Marks, 20 Minutes) 1. Which of the following is a strong electrolyte? a) Glucose b) NaCl c) Urea d) Alcohol 2. What is the functional group of aldehydes? a) –COOH b) –CHO c) –OH d) –COO– 3. The process of … Read more
Total Marks: 65 Time Allowed: 2 Hours 20 Minutes Section A: MCQs (12 Marks, 20 Minutes) 1. The catalyst used in the Haber process is: a) Nickel b) Iron c) Platinum d) Copper 2. Which of the following is a secondary alcohol? a) Methanol b) Ethanol c) Propan-2-ol d) Butanal 3. The chemical formula … Read more
Total Marks: 65 Time Allowed: 2 Hours 20 Minutes Section A: MCQs (12 Marks, 20 Minutes) 1. Which gas is released when acids react with carbonates? a) Oxygen b) Hydrogen c) Carbon dioxide d) Nitrogen= 2. What is the molecular formula of benzene? a) C₂H₄ b) C₃H₆ c) C₆H₆ d) C₄H₈ 3. Which element has … Read more