The 'A' value concept was given by -

All Subjects History, Culture & Heritage of Rajasthan Geography, Natural Resources & Socio-Economic Development of Rajasthan Soil Physical Chemistry, Colloids & Organic Matter Ion Exchange, Soil Reaction, Nutrient Fixation & Submerged Soils Soil Mineralogy & Clay Minerals Pedology, Weathering & Soil Classification Soil Survey, Land Evaluation & Remote Sensing/GIS Soil Physics & Soil Moisture Management Soil Fertility, Plant Nutrients & Fertilizer Technology Analytical Instruments, Soil Testing, INM & Soil Health Soil Microbiology, Biochemistry & Organic Manures Problematic Soils, Poor Quality Water & Watershed Management Agricultural Pollution & Remediation Volumetric & Analytical Chemistry Radioisotopes & Nuclear Techniques in Soil Science

Q.106

RPSC Agriculture Research Officer (Agriculture Chemistry) - 2022

MCQ (Single Correct) +1 −0.33

The 'A' value concept was given by -

'A' वेल्यु अवधारणा दी थी -

Larsen (1967) लार्सन (1967) Russell (1954) रसल (1954) Max Planck (1900) मैक्स प्लांक (1900) Freud (1964) फ्रायड (1964)

Q.107

RPSC Agriculture Research Officer (Agriculture Chemistry) - 2022

MCQ (Single Correct) +1 −0.33

Which group of micronutrients is taken by plants in anionic form?

किस समूह के सूक्ष्म पोषक तत्वों को पौधे ऋण आयनी रूप में ग्रहण करते हैं?

Zn, Cl, B Zn, Cl, B B, Mo, Cl B, Mo, Cl Fe, Cl, Cu Fe, Cl, Cu Mn, Mo, B Mn, Mo, B

Q.108

RPSC Agriculture Research Officer (Agriculture Chemistry) - 2022

MCQ (Single Correct) +1 −0.33

Which scale is used in detailed soil survey?

विस्तृत मृदा सर्वेक्षण में किस पैमाने का प्रयोग किया जाता है?

1:10,000 1:10,000 1:8,000 1:8,000 1:5,000 1:5,000 All of the above ऊपर के सभी

Q.109

RPSC Agriculture Research Officer (Agriculture Chemistry) - 2022

MCQ (Single Correct) +1 −0.33

Which technique is used for quantitative analysis of Humic substances?

ह्यूमिक पदार्थों के मात्रात्मक विश्लेषण के लिए किस तकनीक का प्रयोग किया जाता है?

IR Spectroscopy आई. आर. स्पेक्ट्रोस्कोपी UV Spectroscopy यू. वी. स्पेक्ट्रोस्कोपी NMR Spectroscopy एन. एम. आर. स्पेक्ट्रोस्कोपी ESR Spectroscopy ई. एस. आर. स्पेक्ट्रोस्कोपी

Q.110

RPSC Agriculture Research Officer (Agriculture Chemistry) - 2022

MCQ (Single Correct) +1 −0.33

In clay minerals identification X-ray Diffraction analysis (XRD) is a -

क्ले खनिजों की पहचान में एक्स-रे विवर्तन विश्लेषण (एक्स. आर. डी.) है -

destructive method डिस्ट्रक्टिव विधि semi destructive method सेमी-डिस्ट्रक्टिव विधि non-destructive method नॉन-डिस्ट्रक्टिव विधि None of the above उपरोक्त में से कोई नहीं