कृषि, पशु र वन विज्ञान B.Sc. Ag र B.V.Sc. & A.H. प्रवेश तयारी
कृषि, पशु र वन विज्ञान – B.Sc. Ag र B.V.Sc. & A.H. प्रवेश
B.Sc. Ag & B.V.Sc. Entrance · Agriculture, Veterinary & Forestry Entrance
२,४५४ प्रश्न उपलब्ध। मोड छान्नुहोस्:
कृषि, पशु र वन विज्ञान 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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Which word best describes the practice of growing and caring for forest trees?
सही उत्तर: ख) Silviculture
‘Silviculture’ specifically refers to the science and practice of managing forests and their tree populations. ‘Arboriculture’ focuses on individual trees, ‘botany’ is the study of plants generally, and ‘forestry’ deals with timber production.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Select the sentence with correct grammatical structure: ‘Having finished his work, he went home.’
सही उत्तर: ख) After he had finished his work, he went home.
The sentence ‘After he had finished his work, he went home.’ utilizes the correct structure for a past perfect continuous tense to accurately describe the sequence of events.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Choose the word that best completes the sentence: 'The athlete was visibly _______ after the marathon.'
सही उत्तर: ख) frail
‘Frail’ is the most appropriate term for an athlete exhausted from a long race. ‘Vigorous,’ ‘robust,’ and ‘strong’ are all synonyms that contradict the state of being visibly tired after exertion.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which gas is primarily responsible for the formation of acid rain?
सही उत्तर: ख) Nitrogen Dioxide (NO₂)
Nitrogen dioxide (NO₂) reacts with water and oxygen in the atmosphere to form nitric acid, a major component of acid rain. Carbon dioxide contributes to greenhouse effects, hydrogen chloride is present but less significant, and methane is a potent greenhouse gas but not directly involved in acid rain formation.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What volume of 0.5 M hydrochloric acid (HCl) would be required to neutralize a 1 mole sample of sodium bicarbonate (NaHCO₃)?
सही उत्तर: घ) 160 mL
The balanced reaction is HCl + NaHCO₃ → NaCl + H₂O + CO₂. One mole of HCl reacts with one mole of NaHCO₃. Therefore, 0.5 M HCl would require a volume of 80 mL to neutralize 1 mole of NaHCO₃.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following is a reducing agent in the reaction between iron(III) oxide and hydrogen?
सही उत्तर: ख) Iron(III) Oxide
In this reaction (Fe₂O₃ + 3H₂ → 2Fe + 3H₂O), hydrogen acts as the reducing agent because it gains electrons and reduces iron(III) oxide. Oxygen is an oxidizing agent in this case.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The reaction of sodium hydroxide (NaOH) with a carboxylic acid produces what product?
सही उत्तर: ग) Aldehyde
Sodium hydroxide is a strong base and will react with a carboxylic acid to form an ester, which is an aldehyde. Option 1 and 3 represent other products formed through reactions involving bases, while option 2 represents the ether product formed from alcohol reaction.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following compounds exhibits the highest degree of polarity due to uneven electron distribution?
सही उत्तर: ग) HCl (Hydrogen Chloride)
Ammonia (NH₃) has a pyramidal structure with nitrogen having lone pairs that create a significant dipole moment due to the difference in electronegativity between Nitrogen and Hydrogen. Methane, ethane, and hydrogen chloride have symmetrical structures or are relatively non-polar.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What type of chemical bond holds the atoms together in a water molecule (H₂O)?
सही उत्तर: ख) Covalent Bond
In water, oxygen shares electrons with hydrogen atoms to form covalent bonds. Covalent bonds arise from the sharing of electrons. Ionic bonds involve transfer; metallic bonds are found in metals. Hydrogen bonds are a weaker intermolecular force.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The decomposition of calcium carbonate (CaCO₃) produces carbon dioxide gas. What volume of CO₂ gas will be produced upon the complete decomposition of 10g of CaCO₃ at standard temperature and pressure?
सही उत्तर: ख) 4.48 L
The balanced equation is CaCO₃ → CaO + CO₂. Using stoichiometry, the molar volume of CO₂ produced will be 2.24L at STP as this is the standard molar volume for one mole of a gas. The other options are incorrect because they don't account for the correct stoichiometry and volumes associated with complete decomposition.
💬 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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