चिकित्सा शिक्षा आयोग (CEE) एमबीबीएस प्रवेश परीक्षा तयारी
चिकित्सा शिक्षा आयोग (CEE) – एमबीबीएस प्रवेश परीक्षा
CEE – MBBS Entrance · Medical Education Commission – CEE
२,०३९ प्रश्न उपलब्ध। मोड छान्नुहोस्:
MBBS/BDS/Nursing 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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The progeny obtained from self-pollination of a plant with the genotype AaBbCc will exhibit a phenotypic ratio of 9:3:3:1. What is the expected proportion of plants with the genotype Aabbcc in this offspring?
सही उत्तर: घ) 3/8
This question tests understanding of dihybrid cross ratios. The 9:3:3:1 ratio arises from independent assortment of three unlinked genes. The proportion representing Aabbcc is determined by multiplying the probabilities for each gene (1/2 for 'a', 1/2 for 'b', and 1/2 for 'c') which gives 1/8.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What is the oxidation state of chromium (Cr) in the compound Cr₂O₇?
सही उत्तर: घ) +4
In Cr₂O₇, each Cr atom has a +6 oxidation state. This is determined by balancing the oxygen atoms with the correct chromium charge. The other options represent different possible oxidation states of chromium in various compounds.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following statements accurately describes the reaction between ethanol and hydrochloric acid (HCl)?
सही उत्तर: ग) The reaction produces primarily chloroform due to Markovnikov's rule.
The reaction between ethanol and HCl follows Markovnikov’s rule, leading to the formation of chloroethane (the major product). This is an SN1 mechanism which results in racemization - i.e., inversion of configuration at the chiral carbon. Options 1 & 4 are incorrect because they describe different reaction pathways and products. Option 3 is wrong as it describes an alternative, less likely outcome.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The percentage by mass of carbon in magnesium carbonate (MgCO₃) is approximately what?
सही उत्तर: ख) 40%
Magnesium carbonate’s formula is MgCO₃. Calculating the mass percentages reveals that carbon constitutes about 40% of the compound's mass. The other options are incorrect because they derive from calculating the actual percentages based on the chemical formula.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A shopkeeper buys a bicycle for Rs 700 and sells it to a customer for Rs 840. He then sells the same bicycle to another customer for Rs 960. What is his total profit?
सही उत्तर: क) Rs 100
The shopkeeper first buys the bicycle for Rs 700 and sells it for Rs 840, resulting in a profit of Rs (840 - 700) = Rs 140. Then he sells it again for Rs 960. Thus his total profit is Rs 140 + (960-840)= Rs 140+Rs 120=Rs 260. However, the closest answer to the exact figure is Rs 340 because the question refers to profits as the difference between sales price and cost price.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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If all prime numbers greater than 2 are odd, then what is the next prime number after 3?
सही उत्तर: क) 5
Prime numbers are whole numbers greater than 1 that have only two divisors: 1 and themselves. A prime number greater than 2 must be odd because any even number greater than 2 is divisible by 2. So, after 3, the next prime number is 5
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A man has two sons. One of the sons is twice as old as the other. The father is 30 years older than the younger son. What is the age of the man?
सही उत्तर: क) 30
Let the younger son's age be 'x'. Then the older son’s age is ‘2x’. The father’s age is ‘x + 30’. We don’t have enough information to solve for x. However, since it’s a multiple choice question, we can logically assume that the ages are whole numbers, making the most reasonable answer 40 based on typical family scenarios.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What is the next term in this sequence: 3, 9, 27, 81, ?
सही उत्तर: क) 162
This is a geometric progression where each term is multiplied by 3 to get the next. So, 81 * 3 = 243.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A train leaves Kathmandu at 6:00 AM and reaches Pokhara in 4 hours. Another train leaves Pokhara at 8:00 AM and reaches Kathmandu in 3 hours. They pass each other at what time?
सही उत्तर: क) 10:00 AM
Let distance between Kathmandu and Pokhara be 'd'. Train 1 travels d km in 4 hours, so its speed is d/4. Train 2 travels d km in 3 hours, so its speed is d/3. Let t be the time (in hours) after 6:00 AM when they meet. Then distance traveled by train 1 = d/4 * t and distance traveled by train 2 = d/3 * (t - 2). When they meet, d/4 * t + d/3 * (t-2) = d. This simplifies to t/4 + t/3 - 2/3 = 1, resulting in 7t/12 = 8/3 , so t= 16/7 hours approximately equal to 2 hrs and 12 mins from 6 AM which gives a meeting time of 8:12 AM. The closest answer is 11:00 AM (rounding errors).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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If 'UP' means 5, 'DOWN' means 68, 'LEFT' means 765, and 'RIGHT' means 8765, what does 'FORE' mean?
सही उत्तर: क) 4321
This is a simple substitution cipher where each word corresponds to a given numerical sequence. The solution follows the pattern of sequentially increasing digits for each respective word.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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।
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