कृषि, पशु र वन विज्ञान B.Sc. Forestry प्रवेश तयारी
कृषि, पशु र वन विज्ञान – B.Sc. Forestry प्रवेश
B.Sc. Forestry Entrance · Agriculture, Veterinary & Forestry Entrance
२,४९३ 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
-
What type of chemical reaction does the following process represent? The reaction of magnesium metal with hydrochloric acid to produce magnesium chloride and hydrogen gas.
सही उत्तर: ग) Redox (Reduction-Oxidation)
This is a neutralization reaction as an acid (HCl) reacts with a metal (Mg) to produce salt (MgCl₂) and a gas (H₂). Redox reactions involve changes in oxidation states. Precipitation involves the formation of solid compounds from solution. “
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
The reaction between iron(III) oxide (Fe₂O₃) and carbon monoxide (CO) produces iron(II) oxide (FeO) and carbon dioxide (CO₂). If 5 grams of Fe₂O₃ reacts completely with CO, what mass of CO₂ will be produced?
सही उत्तर: ग) 20 g
The balanced equation is: Fe₂O₃ + 3CO → 2FeO + 3CO₂. The molar mass of Fe₂O₃ is 159.69 g/mol and the molar mass of CO₂ is 44.01 g/mol. Therefore, 5 grams of Fe₂O₃ will produce (5/159.69) * 3 * 44.01 = 20g of CO₂. Option A incorrectly states the amount produced. Option B is too large and D is far too high.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
What is the molar concentration (in mol/L) of a solution prepared by dissolving 4.4 grams of sodium chloride (NaCl) in 1 liter of water?
सही उत्तर: क) 0.25 M
Sodium chloride has a molar mass of 58.44 g/mol. To calculate the molar concentration (M), we divide the number of moles of NaCl by the volume in liters. (4.4 g / 58.44 g/mol) = 0.0746 mol. Therefore, the molar concentration is 0.0746 mol/L. Option B is incorrect because it overestimates the molar amount. Options C and D are incorrect as they are significantly higher than the calculated value.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
Choose the correct preposition to complete this sentence: The farmer traveled _______ a new tractor.
सही उत्तर: ग) by
‘By’ indicates means of transportation – using a vehicle. ‘On’, ‘in’, and ‘with’ are incorrect prepositions in this context.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
Select the word closest in meaning to ‘resilient’ in the context of a plant adapting to drought conditions.
सही उत्तर: ख) Strong and able to withstand adversity;
‘Resilient’ describes an ability to recover quickly from difficulties. ‘Strong and able to withstand adversity’ is the most accurate synonym here, while the other options denote weakness or decay.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
Rewrite the following sentence in indirect speech: ‘I am reading a book,’ she said.
सही उत्तर: ख) She said that she was reading a book;
When converting to indirect speech, we change the tense from present continuous ('am reading') to past continuous ('was reading'). The other options represent incorrect shifts in tense and structure.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
Complete the following sentence using the most appropriate word: ‘Don’t ___ to interrupt during the lecture!’
सही उत्तर: क) however
‘Nevertheless’ is the correct option as it indicates a strong contrast, fitting the context of not interrupting. The other options are grammatically incorrect or don't convey the intended meaning.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
In proteins, amino acids are covalently linked together via which type of bond?
सही उत्तर: ग) Peptide Bond
Amino acids are joined by a peptide bond formed through the condensation reaction between the carboxyl group (-COOH) of one amino acid and the amino group (-NH₂) of another. This process releases water.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
Rutherford's gold foil experiment, employing alpha particles, fundamentally revealed the existence of which subatomic particle?
सही उत्तर: ग) Neutron
The scattering pattern observed during Rutherford’s experiment demonstrated that atoms have a small, dense, positively charged nucleus. This discovery was pivotal in understanding atomic structure and directly supported the concept of the proton.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
Which of the following processes utilizes calcium carbide (though now banned) for its intended purpose – achieving a chemical reaction that leads to fruit ripening?
सही उत्तर: ख) Hydrolysis
Calcium carbide reacts with water to produce acetylene. Acetylene then undergoes oxidation catalyzed by enzymes (produced by microorganisms) in the fruit, leading to ripening. The other options are irrelevant processes in this context.
💬 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।
नमस्ते! पाठ्यक्रम, सामान्य ज्ञान, भाषा परीक्षा वा कुनै प्रश्नको उत्तर बुझ्न सोध्नुहोस्।
AI ले गल्ती गर्न सक्छ। महत्वपूर्ण कुरा आधिकारिक स्रोतमा जाँच्नुहोस्।