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स्वाध्यायमा कहिल्यै लापरबाही नगर। (तैत्तिरीय उपनिषद्)

Never neglect your own study. (Taittiriya Upanishad)

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रसायन विज्ञान (Chemistry) – Chemistry MCQ

रसायन विज्ञान (Chemistry) – CEE प्रवेश

Chemistry · Medical Entrance (CEE) – Physics, Chemistry, Biology & MAT · ४१० प्रश्न

सबै विषय भौतिक विज्ञान (Physics) रसायन विज्ञान (Chemistry) जीव विज्ञान – Zoology वनस्पति विज्ञान – Botany MAT (Mental Agility Test)

४१० प्रश्न उपलब्ध। मोड छान्नुहोस्:

रसायन विज्ञान (Chemistry): प्रश्न र उत्तर

सही लागेको विकल्पमा थिच्नुहोस्। सही भए हरियो, गलत भए रातो देखिन्छ; ३ सेकेन्डपछि सही उत्तर र व्याख्या देखिन्छ।

  1. The reaction of potassium permanganate (KMnO₄) with oxalic acid (H₂C₂O₄) in acidic solution produces manganese ions (Mn²⁺). What is the oxidation state of manganese in Mn²⁺?

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  2. Which of the following reagents would be most suitable for oxidizing ethanol (CH₃CH₂OH) to acetaldehyde (CH₃CHO)?

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  3. The decomposition of N₂O₅ at 44°C yields NO₂ and O₂O₅ decomposes at 44°C yields NO₂ and O₂. When 50g of N₂O₅ is heated to 44°C, 68g of NO₂ are produced. What mass of O₂ is also produced?

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  4. The solubility product (Ksp) of AgCl in 0.1 M NH₄NH₂ solution is lower than its value in pure water. This is due to: (a) The formation of a complex ion between Ag⁺ and NH₄⁺. (b) The decrease in ionic strength of the solution. (c) The high lattice energy of AgCl. (d) The increase in viscosity of the solution.

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  5. The percentage dissociation of an electrolytic solution of acetic acid (CH₃COOH) increases with which of the following factors? (a) Decrease in temperature (b) Increase in concentration of acetic acid (c) Increase in concentration of acetate ions (d) Decrease in conductivity of the solution

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  6. Which of the following compounds exhibits resonance stabilization?

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  7. The reaction between zinc and hydrochloric acid produces which gas?

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  8. What is the primary reason for the different acidities of hydrochloric acid (HCl) and hydrofluoric acid (HF)?

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  9. Which of the following statements is correct regarding the reaction between hydrochloric acid (HCl) and sodium carbonate (Na₂CO₃)?

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  10. Plaster of Paris is used in hospitals for making casts to support fractured bones because, when mixed with water: (a) It undergoes a rapid exothermic reaction. (b) It forms a rigid and strong gel immediately. (c) It initially remains as a paste that hardens upon hydration. (d) It instantly fuses with the bone tissue.

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यी अभ्यास प्रश्न हुन्, आधिकारिक प्रश्न होइनन्। पाठ्यक्रम, विज्ञापन र नतिजाका लागि सम्बन्धित निकायको आधिकारिक वेबसाइट हेर्नुहोस्। उत्तरमा गल्ती भेटे प्रश्नमुनिको "टिप्पणी / गल्ती रिपोर्ट" मा लेख्नुहोस्।