चिकित्सा शिक्षा आयोग (CEE) बीडीएस प्रवेश परीक्षा तयारी

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

791. A gas occupies a volume of 2 m³ at 300 K. If the pressure is increased to 300 kPa, what will be the new temperature (in Kelvin)?

     क150 K ख450 K ग600 K घ750 K
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

792. The potato tuber develops as a modified _____, playing a key role in vegetative propagation.

     कStem खLeaf गRoot घFlower
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

793. Which of the following statements accurately describes Cycadophyta (क्याडोपता) as a ‘living fossil’?

     कThey possess the most complex vascular system among gymnosperms खTheir evolutionary history can be traced back to ancient plant lineages, exhibiting relatively little change over millions of years गThey are highly adaptable to diverse environmental conditions, enabling rapid colonization of new habitats घThey have the highest metabolic rate compared to other gymnosperms
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

794. The application of ethephon to ripening bananas is based on its ability to:

     कIncrease chlorophyll production खStimulate cell division and expansion गInduce ethylene biosynthesis, accelerating fruit maturation घDecrease carbon dioxide concentration in the fruit
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

795. Which of the following best describes the role of chlorophyll molecules within photosystems during photolysis of water?

     कThey absorb light energy and initiate electron transport chain खThey directly catalyze the splitting of water into hydrogen ions and oxygen गThey neutralize excess electrons generated in the reaction घThey act as a protective barrier against excessive UV radiation
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

796. The primary photosynthetic product of photosynthesis, which directly contributes to the formation of glucose during the Calvin cycle, is:

     कOxygen खCarbon Dioxide गGlucose घWater
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

797. Which of the following factors primarily influences the rate of a chemical reaction?

     कVolume of solvent खTemperature गPressure घColor of reactants
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

798. Which of the following statements correctly describes the properties of strong acids?

     कThey react with carbonates to form carbon dioxide खThey are weak electrolytes in solution गThey completely dissociate into ions in water घThey have a high pH value
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

799. The equilibrium constant K for the reaction: N₂O₄(g) ⇌ 2NO₂(g) is 10⁻³ at 300K. If the initial concentration of N₂O₄ is 0.5 M, what is the concentration of NO₂ at equilibrium?

     क0.99 ख0.45 ग0.50 घ1.00
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

800. A farmer has chickens and cows. He counts his animals and gets 70. When he counts his legs, he gets 184. How many chickens does the farmer have?

     क30 ख40 ग50 घ60
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।