Q.15
ICAR AIEEA PG 2024 - Physical Science
Arranging Order +4 −1
English हिन्दी

Arrange the following in increasing the amount of nitrogen in the fertilizers:

(A) . Ammonium sulphate
(B) . Ammonium nitrate
(C) . Ammonium chloride
(D) . Calcium ammonium nitrate

Choose the correct answer from the options given below:

उर्वरकों में नाइट्रोजन की मात्रा के बढ़ते क्रम (increasing order) में निम्नलिखित को व्यवस्थित करें:

(A) . अमोनियम सल्फेट (Ammonium sulphate)
(B) . अमोनियम नाइट्रेट (Ammonium nitrate)
(C) . अमोनियम क्लोराइड (Ammonium chloride)
(D) . कैल्शियम अमोनियम नाइट्रेट (Calcium ammonium nitrate)

नीचे दिए गए विकल्पों में से सही उत्तर चुनें:

EXPLANATION Chemical Fertilizers: Manufacture, Composition, Chemistry and Transformations of N, P, K Fertilizers

The percentage nitrogen content in each fertilizer is:

  • Ammonium sulphate ($(\text{NH}_4)_2\text{SO}_4$): $20.6\%\ \text{N}$ (often rounded to $20 - 21\%$).
  • Ammonium chloride ($\text{NH}_4\text{Cl}$): $25.0\%\ \text{N}$.
  • Calcium ammonium nitrate (CAN, 'Kisan Khad'): $25.0 - 26.0\%\ \text{N}$ (standard grade typically contains $25\%$ or $26\%$, higher than ammonium chloride in official Indian fertilizer specification).
  • Ammonium nitrate ($\text{NH}_4\text{NO}_3$): $33.5 - 34.0\%\ \text{N}$.
    Arranging in increasing order: Ammonium sulphate ($20.6\%$) < Ammonium chloride ($25.0\%$) < Calcium ammonium nitrate ($25-26\%$) < Ammonium nitrate ($33.5\%$).
    Order: (A), (C), (D), (B).

उर्वरकों में नाइट्रोजन का प्रतिशत मान निम्नलिखित है:

  • अमोनियम सल्फेट ($(\text{NH}_4)_2\text{SO}_4$): $20.6\%\ \text{N}$
  • अमोनियम क्लोराइड ($\text{NH}_4\text{Cl}$): $25.0\%\ \text{N}$
  • कैल्शियम अमोनियम नाइट्रेट (CAN - किसान खाद): $25.0 - 26.0\%\ \text{N}$
  • अमोनियम नाइट्रेट ($\text{NH}_4\text{NO}_3$): $33.5 - 34.0\%\ \text{N}$
    नाइट्रोजन की मात्रा का बढ़ता हुआ क्रम: (A) अमोनियम सल्फेट ($20.6\%$) < (C) अमोनियम क्लोराइड ($25\%$) < (D) CAN ($25-26\%$) < (B) अमोनियम नाइट्रेट ($33.5\%$).
अतः सही क्रम (A), (C), (D), (B) है।
Explanation not matching this question? क्या व्याख्या इस प्रश्न से मेल नहीं खा रही? Report
Want to practice this paper in exam conditions? क्या आप परीक्षा जैसे माहौल में अभ्यास करना चाहते हैं? Test yourself in 5-question batch format with timer and hidden answers. 5-प्रश्नों के बैच फॉर्मैट, टाइमर और छिपे उत्तरों के साथ खुद को परखें।
Start Practice Mode → प्रैक्टिस टेस्ट मोड शुरू करें →

Physical Science Subjects

Browse all chapters by subject

General Agriculture, Crop Production, Physiology & Rural Development

8 Topics
Agro-Climatic Zones, Cropping Systems, Tillage and Crop Establishment Historical Evolution, Agricultural Education and Research Infrastructure in India Water Management, Irrigation Scheduling, Evapotranspiration and Water Productivity Agricultural Meteorology, Weather Forecasting, Climate Change and Crop Modeling Plant Physiology: Photosynthesis (C3, C4, CAM), Respiration, Transpiration and Source-Sink Dynamics Agricultural Extension Systems, Rural Sociology and Developmental Programmes Plant Growth Regulators, Photoperiodism, Vernalization and Abiotic Stress Physiology Weed Biology, Weed Classification, Herbicides and Integrated Weed Management

Analytical, Physical & Organic Chemistry and Pesticides

9 Topics
Chemistry of Biomolecules: Carbohydrates, Lipids, Amino Acids, Proteins and Enzymes Volumetric and Gravimetric Analysis, Acid-Base Equilibria and Buffer Systems Synthetic Pesticides Chemistry: Organochlorines, Organophosphates, Carbamates and Synthetic Pyrethroids Organic Chemistry: Structure, Bonding, Stereochemistry, Functional Groups and Reaction Mechanisms Solutions, Colligative Properties, Colloids and Surface Chemistry Chemical Thermodynamics, Thermochemistry, Chemical Kinetics and Catalysis Electrochemistry, pH, Electrical Conductivity, Potentiometry and Redox Potentials Optical and Spectroscopic Analytical Methods: UV-Vis, AAS, Flame Photometry and ICP-OES Pesticide Formulations, Surfactants, Mode of Action, Residue Dynamics and Safety Regulations

Pedology, Soil Physics, Soil Colloids, Problem Soils & Water Quality

13 Topics
Earth Crust, Minerals, Rocks, Weathering Processes and Soil Formation Soil Water Retention, Energy Concepts, Soil Water Potential, Retention Curves (pF) and Hysteresis Soil Profile Morphology, Diagnostic Horizons, Pedogenic Regimes and Soil Survey Soil Colloids: Silicate Clay Minerals (1:1, 2:1 Expanding, Non-expanding), Sesquioxides and Amorphous Clays Soil Water Movement: Saturated, Unsaturated Flow, Darcys Law, Hydraulic Conductivity and Infiltration Soil Structure, Aggregation, Consistency, Crusting and Soil Crust Dynamics Soil Aeration, Gaseous Exchange, Diffusion, Soil Temperature, Heat Transfer and Thermal Regimes Soil Texture, Particle Size Distribution, Mechanical Analysis and Stokes Law Acid Soils: Genesis, Acidity Forms, Exchangeable Aluminum, Buffering and Liming Requirements Salt-Affected Soils: Saline, Sodic, Saline-Sodic Soils Genesis, Diagnostics and Gypsum Requirement Soil Bulk Density, Particle Density, Porosity, Compaction and Pore Size Distribution Ion Exchange Phenomena: Cation Exchange Capacity (CEC), Anion Exchange Capacity (AEC) and Base Saturation Irrigation Water Quality Standards: EC, SAR, RSC, Boron Hazard and Water Usability Classification

Soil Fertility, Classification, Remote Sensing, Soil Biology, Fertilizers & Pollution

13 Topics
Essential Plant Nutrients: Classification, Physiological Roles, Deficiency Symptoms and Mobility Remote Sensing, GIS, GPS, Digital Soil Mapping and Precision Agriculture Soil, Water and Atmospheric Pollution: Heavy Metal Toxicity, Radioactive Fallout, Agrochemical Contamination and Remediation Comprehensive Soil Taxonomy: 12 Soil Orders, Diagnostic Horizons, Nomenclature and Land Capability Classification Soil Nitrogen Dynamics: Mineralization, Nitrification, Denitrification, Ammonia Volatilization and BNF Soil Microbiology, Organic Matter Decomposition, Humus Chemistry, Humic Acids and Soil Enzymes Soil Erosion (Water and Wind), Universal Soil Loss Equation (USLE) and Soil Conservation Practices Soil Fertility Evaluation: Soil Testing Methods, Critical Levels, Plant Analysis, DRIS and Fertilizer Recommendations Chemical Fertilizers: Manufacture, Composition, Chemistry and Transformations of N, P, K Fertilizers Active Slow-Release Fertilizers, Nitrification Inhibitors, Biofertilizers and Integrated Nutrient Management (INM) Soil Potassium and Micronutrient Dynamics (Fe, Mn, Zn, Cu, B, Mo): Forms, Availability and Interactions Soil Phosphorus Dynamics: P Fixation, Retention, Adsorption Isotherms, Labile P and Release Mechanisms of Nutrient Uptake, Ion Translocation, Root Interception, Mass Flow and Diffusion
Official PYQ Papers

Previous Year Papers of Physical Science

Practice official shift-wise question papers with answer keys and detailed explanations on the actual exam pattern.

3
Total Available Previous Papers

Choose Exam

Exam Directory

Browse official Previous papers and mock tests

10 Major Agriculture Exams Available

RPSC Agriculture Exams

5 Exams
Food Safety Officer Assistant Agriculture Officer Agriculture Officer RPSC Agriculture Research Officer RPSC AARO

RSSB Agriculture Exams

1 Exam
RSSB Agriculture Supervisor

National & PG Entrances

4 Exams
ICAR AIEEA PG Active
CUET UG Rajasthan Agriculture Pre-PG ICAR JRF/SRF