Q.1
Agricultural Chemicals- ICAR JRF/SRF 2024 (Q.41)
MCQ (Single Correct) +4 −1

Solubility of Fe(III) oxides decreases in the order:

(A) . a-Fe203 (Hematite)
(B) . a-FeOOH (Ggoethite)
(C) . y-Fe203 (Maghemite
(D) . y-FeOOH (Lepidocrocite)

Choose the correct answer from the options given below:

Agricultural Chemicals विषय एवं अध्याय

विषय एवं पाठ्यक्रम के अनुसार सभी अध्याय देखें

Agrochemical Formulations

2 टॉपिक्स
Pesticide Formulation Types: EC, WP, SC, WG, Granules, Microencapsulated Suspensions & Controlled-Release Systems Formulation Adjuvants, Surfactants, Wetting Agents, Emulsifiers, Molecular Sieves, Nano-Pesticides & Quality Testing

Agrochemicals - Regulation and Quality Control

2 टॉपिक्स
International Standards & Quality Compliance: FSSAI, Codex Alimentarius, Good Laboratory Practice (GLP), WTO-SPS Agreement & Banned Pesticides Pesticide Legislation: Insecticides Act 1968, Insecticides Rules 1971, Central Insecticides Board & Registration Committee (CIB&RC)

Chemistry of Natural Products

2 टॉपिक्स
Plant Biopolymers (Chitin, Hemicellulose, Lignin), Carotenoids, Phytochemical Extraction & Structure Elucidation Secondary Metabolite Classes: Alkaloids, Terpenoids, Phenolics, Flavonoids, Saponins, Lignans (Enterodiol) & Glucosinolates (Sinigrin)

Chromatography and Spectroscopic Techniques

2 टॉपिक्स
Chromatographic Separation Methods: Column, TLC, Ion-Exchange, Gas Chromatography (GC-FID/ECD) & HPLC (UV/RID) Spectroscopic & Hyphenated Analytics: UV-Vis, FTIR, NMR (1H/13C), High-Resolution Mass Spectrometry (HRMS, Orbitrap), GC-MS & LC-MS/MS

Data Analysis

2 टॉपिक्स
Agrochemical Statistics: Descriptive Parameters, Linear & Non-Linear Calibration Curves, Probit Analysis (LC50, LD50 Determination) Analytical Experimental Inference: ANOVA, Student's t-Test, F-Test, Regression Models & Residue Half-Life Calculations

Environment Pollution: Implications and Remediation

2 टॉपिक्स
Agrochemical Toxicology: Acute/Chronic Toxicity, NOAEL Units, Teratogenicity, Non-Target Hazards (Pollinators, Fish) & Universal Antidotes Persistent Organic Pollutants (POPs), Stockpiles, Obsolete Pesticide Disposal, Bioremediation & Effluent Treatment

खंड अ: सामान्य कृषि

5 टॉपिक्स
मृदा विज्ञान, पादप पोषण एवं सुधार फसल आनुवंशिकी, पादप प्रजनन एवं आईपीआर कृषि मौसम विज्ञान एवं जलवायु विज्ञान शस्य विज्ञान, जुताई एवं फसल उत्पादन कोशिका विज्ञान, पादप कार्यिकी एवं जैव रसायन

General Chemistry

2 टॉपिक्स
Stereochemistry, Asymmetric Synthesis, Optical Isomerism, Chirality, Enantiomers, Diastereomers & Reactive Intermediates (Carbenes, Radicals) Organic Reaction Mechanisms: Nucleophilic & Electrophilic Substitutions (SN1/SN2), Addition, Elimination & Named Organic Reactions सक्रिय

Herbicides and Plant Growth Regulators

2 टॉपिक्स
Herbicide Chemistry & Modes of Action: Phenoxy Acids (2,4-D), Triazines, Sulfonylureas, AOPPs (Fluazifop), EPSPS Inhibitors & Safeners Plant Growth Regulators: Auxins, Gibberellins, Cytokinins, Abscisic Acid, Ethylene Generators & Brassinosteroids

Natural Resource Management

2 टॉपिक्स
Fertilizer Chemistry & Manufacturing: Urea, Phosphatic Fertilizers (DAP, SSP), Potassic Salts, Liquid Fertilizers & Nitrification Inhibitors Soil Conditioners, Superabsorbent Hydrogels, Biofertilizers & Environmental Mineral Management

Naturally Occurring Insecticides

1 टॉपिक्स
Botanical Insecticides: Natural Pyrethrins, Neem Limonoids (Azadirachtin, Azadiradione), Rotenone & Nicotine

Pesticide Residues and their Dynamics in the Environment

2 टॉपिक्स
Sample Preparation & Extraction: QuEChERS Technique (PSA, GCB Sorbents), Accelerated Solvent Extraction (ASE) & Multi-Residue Clean-Up Environmental Fate & Residue Kinetics: Sorption, Partition Coefficient (Kow), Photolysis, Soil Leaching, Persistence, LOD/LOQ & MRLs

Synthetic Insecticides, Fungicides, Nematicides and Rodenticides

2 टॉपिक्स
Synthetic Insecticides & Acaricides: Organophosphates, Carbamates, Synthetic Pyrethroids (Cypermethrin), Neonicotinoids & Chitin Inhibitors Synthetic Fungicides, Nematicides & Rodenticides: Dithiocarbamates (Mancozeb), Phthalimides (Captan, Folpet), Triazoles (Hexaconazole), Anticoagulants & Fumigants
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