Which of the following is 2:1 expanding type clay mineral ? | Agrigyan

Filter: 2011 Paper (5 Qs)

View All Papers

Q.1

RPSC ARO 2011 MCQ (Single Correct) +1 −0.33

Which of the following is 2:1 expanding type clay mineral ?

निम्नलिखित में से कौन 2:1 प्रसारणीय क्ले खनिज का प्रकार है?

Illite इलाइट Vermiculite वर्मीकुलाइट Kaolinite कैओलिनाइट Chlorite क्लोराइट

Q.2

RPSC ARO 2011 MCQ (Single Correct) +1 −0.33

Which type of mineral Chlorite is ?

क्लोराइट किस प्रकार का खनिज है?

2:1:1 type 2:1:1 प्रकार 2:1 expanding type 2:1 प्रसारणीय प्रकार 1:1 type 1:1 प्रकार 2:1 non expanding type 2:1 अप्रसारणीय प्रकार

Q.3

RPSC ARO 2011 MCQ (Single Correct) +1 −0.33

Predominant clay mineral of spodosols is

स्पोडोसोल्स का मुख्य क्ले खनिज है -

Kaolinite कैओलिनाइट Montmorillonite मॉन्टमॉरिलोनाइट Illite इलाइट Sesquioxides सेस्क्वीऑक्साइड्स

Q.4

RPSC ARO 2011 MCQ (Single Correct) +1 −0.33

Choose the correct statement :

सही कथन का चयन कीजिए :

A single cation on a given clay mineral can only be held with a fixed bonding energy. किसी दिए गए क्ले खनिज पर एक धनायन केवल एक निश्चित बंधन ऊर्जा से ही बंधा रह सकता है। A given clay has fixed bonding energy for different cations. किसी दिए गए क्ले खनिज में विभिन्न धनायनों के लिए निश्चित बंधन ऊर्जा होती है। Different clays have widely different bonding energies for a given cation. किसी एक धनायन के लिए विभिन्न प्रकार की क्ले में व्यापक रूप से भिन्न बंधन ऊर्जाएं होती हैं। The complimentary ion has no effects on bonding energies. पूरक आयन का बंधन ऊर्जाओं पर कोई प्रभाव नहीं होता है।

single cation can be held at planar, edge, or interlayer sites with varying bonding energies.
Bonding energy varies substantially among different cations based on valence and hydrated radius.
In soil colloid thermodynamics (Bray's cation exchange and Jenny's bonding concepts), Different clay minerals (such as 1:1 kaolinite, 2:1 smectite, and 2:1 illite/vermiculite) possess fundamentally different crystal structures, charge densities, and site locations, resulting in widely different bonding energies for a given cation (e.g. K+ is bonded with vastly higher energy in vermiculite than in kaolinite).
Complementary ions exert significant effects on cation release.

Hence, the correct option is (C).

एक ही धनायन विभिन्न स्थलों (सतह, किनारा, अंतःपरत) पर अलग-अलग ऊर्जा से बंधता है।
अलग-अलग धनायनों की बंधन ऊर्जा भिन्न होती है।
मृदा कोलाइड विज्ञान के अनुसार, 'विभिन्न क्ले खनिजों (जैसे कैओलिनाइट, स्मेक्टाइट, वर्मिकुलाइट) में उनकी संरचना व आवेश घनत्व भिन्न होने के कारण किसी एक दिए गए धनायन हेतु व्यापक रूप से भिन्न बंधन ऊर्जाएं' (Different bonding energies) होती हैं।
पूरक आयन विनिमयशीलता को प्रभावित करते हैं।

अतः सही विकल्प (C) है।

Explanation not matching this question? क्या व्याख्या इस प्रश्न से मेल नहीं खा रही? Report

Q.5

RPSC ARO 2011 MCQ (Single Correct) +1 −0.33

Choose the correct statement :

सही कथन का चयन कीजिए :

Illite clay particles are smaller than montmorillonite particles. इलाइट क्ले के कण मॉन्टमॉरिलोनाइट कणों से छोटे होते हैं। Internal surface of kaolinite clay is negatively charged. कैओलिनाइट क्ले की आंतरिक सतह ऋणात्मक आवेशित होती है। Cation exchange capacity of vermiculite is 2-5 cmol/kg. वर्मिकुलाइट की धनायन विनिमय क्षमता 2-5 cmol/kg होती है। Chlorites are silicates of magnesium. क्लोराइट मैग्नीशियम के सिलिकेट होते हैं।

Rajasthan History

4 Topics

Major Dynasties & Prominent Rulers Ancient & Early History Modern History & Freedom Movements Integration of Rajasthan

Rajasthan Art & Culture

5 Topics

Forts, Monuments & Architecture Fairs, Festivals & Traditions Folk Music, Dance & Drama Folk Deities & Saints Language, Dialects & Literature

Rajasthan Geography

6 Topics

Drainage System & Water Resources Soils, Forests & Wildlife Physiography & Relief Features Climate & Agro-Climatic Zones Environmental Issues & Desertification Mineral & Energy Resources

Rajasthan Economy

1 Topic

Demographics & Tribal Economy

Soil Physical Chemistry & Colloids

6 Topics

Diffuse Double Layer & Electrokinetic Properties of Colloids Soil Organic Matter Fractionation & Clay-Organic Interactions Soil Colloids & Origin of Charge Elemental Composition of Earth's Crust and Soils Adsorption and Desorption Properties of Soil Colloids Soil Physical Chemistry & Chemical Thermodynamics

Ion Exchange & Nutrient Fixation

6 Topics

Cation and Anion Exchange in Soils Nutrient Fixation in Soils (K, P, NH4+) Chemistry of Acid Soils Soil Reaction (pH) & Nutrient Availability Chemistry and Electrochemistry of Submerged Soils Soil-Pesticide Interaction

Soil Mineralogy & Clay Minerals

2 Topics

Crystalline & Non-Crystalline Clay Minerals Active Structural Chemistry & Classification of Soil Minerals

Pedology & Soil Classification

3 Topics

Soil Formation Factors, Processes & Soil Profile Soil Classification Systems & Soil Taxonomy Weathering of Rocks and Minerals

Soil Survey & Remote Sensing

4 Topics

Soil Survey & Soil Mapping Major Soil Groups of India and Rajasthan Land Capability, Irrigability & Land Evaluation Remote Sensing and GIS Techniques

Soil Physics & Water Relations

3 Topics

Soil Moisture Classification, Movement & Management Soil Physical Properties Soil Air and Soil Temperature

Soil Fertility & Fertilizer Technology

4 Topics

Micronutrients & Role of Chelates Fertilizer Manufacturing Processes & Characteristics Soil Fertility, Productivity & Essential Plant Nutrients Macronutrients (N, P, K, S) Forms & Transformations

Principles of Agronomy & Agro-Meteorology

4 Topics

Soil Test Methods & Soil Test Crop Response (STCR) Analytical Instruments in Soil Testing Soil Fertility Evaluation, Field Trials & Soil Health Fertilizer Use Efficiency, SSNM & INM

Tillage & Crop Geometry

4 Topics

Biological Nitrogen Fixation, Bio-fertilizers & Organic Manures Microbial Transformation of Plant Nutrients Soil Organic Matter, Humus & Waste Recycling Soil Biota, Rhizosphere Biochemistry & Soil Enzymes

Cropping Systems & Sustainable Agriculture

3 Topics

Salt-Affected Soils & Poor-Quality Waters Soil Erosion, Conservation & Watershed Management Acid, Acid-Sulphate & Permeability-Problem Soils

Dryland Farming & Watershed Management

1 Topic

Soil, Water and Air Pollution in Agriculture

Weed Management & Herbicide Physiology

2 Topics

Analytical Reagents, Indicators & Standard Curves Acid-Base, Redox & Complexometric Titrations

Soil Fertility & Plant Nutrition

3 Topics

Nutrient Potentials, Buffering & Fixation Capacities Electrochemical Titration & Exchange Capacity Estimation Soil and Plant Sample Analysis for Essential Nutrients

Irrigation Water Management

2 Topics

Radioactivity, Radioisotopes & Nuclear Radiations Radiation Monitoring & Nuclear Instruments

RPSC Agriculture Dept. Exam 2024 (Paper 1 - General Knowledge)

40 Questions Bilingual

RPSC Agriculture Research Officer (Agriculture Chemistry) - 2024

110 Questions Bilingual

RPSC Agriculture Research Officer (Agriculture Chemistry) - 2022

150 Questions Bilingual

RPSC Agriculture Research Officer (Agriculture Chemistry) - 2020

180 Questions Bilingual

RPSC Agriculture Research Officer (Agriculture Chemistry) - 2011

100 Questions Bilingual

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 CUET UG Rajasthan Agriculture Pre-PG ICAR JRF/SRF