मेडिकल प्रवेश (CEE) – Physics, Chemistry, Zoology, Botany, MAT
मेडिकल प्रवेश (CEE) – Physics, Chemistry, Zoology, Botany, MAT
Medical Entrance (CEE) – Physics, Chemistry, Biology & MAT · २,०३९ प्रश्न
२,०३९ प्रश्न उपलब्ध। मोड छान्नुहोस्:
CEE प्रवेश: प्रश्न र उत्तर
सही लागेको विकल्पमा थिच्नुहोस्। सही भए हरियो, गलत भए रातो देखिन्छ; ३ सेकेन्डपछि सही उत्तर र व्याख्या देखिन्छ।
सही: ० / ०
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Consider the reaction: N₂O₄(g) → 2NO₂(g). If the standard enthalpy change for this reaction is -1.5 kJ/mol, what is the heat absorbed or released when 3 moles of N₂O₄ decompose?
सही उत्तर: क) -4.5 kJ
The enthalpy change is given per mole. Therefore, for 3 moles, we multiply the value by 3: -1.5 kJ/mol * 3 mol = -4.5 kJ. This indicates heat absorbed.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The molar mass of glucose (C₆H₁₂O₆) is approximately 180 g/mol. If 36g of glucose is dissolved in water to make 200mL solution, what will be the approximate molarity of this solution?
सही उत्तर: ख) 1.0 M
First calculate the moles of glucose: 36g / 180 g/mol = 0.2 mol. Then, divide the number of moles by the volume in liters: 0.2 mol / 0.2 L = 1.0 M. The other options result from incorrect calculations or approximations.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In a race, A beats B and C. B beats D. If A defeats C, which statement must be true?
सही उत्तर: क) A is faster than C
Given that A > C (A beats C), and A > B (A beats B), and B > D. Therefore, A must be the fastest of the four.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Find the missing term in the sequence: 12, 18, 27, 36, 45, ?
सही उत्तर: ख) 54
The sequence represents multiples of numbers increasing by one: 6*2, 3*6, 4.5*6, 6*6, 7.5*6. The next number is 9*6 = 54.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A mirror image of the number 654 is formed. What is the next number in this sequence?
सही उत्तर: ख) 846
The mirror image reverses the digits. 654 reflected in a mirror becomes 456. The next number in that pattern would be adding 1 to the last digit, so 456 becomes 546.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following statements accurately describes Le Chatelier's Principle?
सही उत्तर: ग) The rate of a reaction will increase if a catalyst is added
Le Chatelier's Principle states that when a change of condition (stress) is applied to a system at equilibrium, the system will shift in a direction that relieves the stress. The other options are incorrect descriptions or misconceptions about equilibrium.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The molar mass of potassium permanganate (KMnO₄) is approximately:
सही उत्तर: ख) 132 g/mol
Potassium (K) has a molar mass of 39.1 g/mol, manganese (Mn) is 54.9 g/mol and oxygen (O) is 16.0 g/mol. Therefore, K + Mn + 4O = 39.1 + 54.9 + (4 * 16.0) = 196 g/mol.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The percentage composition of carbon in magnesium carbonate (MgCO₃) is 40%. What is its empirical formula?
सही उत्तर: घ) Mg₂(CO₃)₃
Magnesium carbonate contains one atom of carbon and three atoms of oxygen. The percentage composition given indicates that for every 100g of the compound, 40g is carbon. This corresponds to Mg(CO₃)₂ based on the ratio of mass. The other options have incorrect ratios of elements.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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If UP means ‘Hot’, DOWN means ‘Cold’, then what does RIGHT mean?
सही उत्तर: ख) Cool
The code uses opposites. UP (hot) and DOWN (cold) are related to temperature. Therefore, RIGHT likely represents ‘Cool’ as it's the opposite of ‘Hot’. The other options represent different temperatures or states.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A farmer has a fox and a chicken. He needs to take them across a river in a boat that can only carry himself and one other thing at a time. How does he get them all across the river without losing the fox or the chicken?
सही उत्तर: ख) Twice
The farmer takes the fox and chicken across, returns alone, takes the chicken across, and then returns with the fox. This is the classic puzzle solution involving three trips.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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