List of top Questions asked in ICAR AIEEA (PG)- 2023

Match List-I with List-II

List-I (Theory proposed) & List-II (Author/formula)
(A) Textural triangle & (I) Sorenson
(B) Ideal gas & (II) Schofield
(C) pH & (III) Whitney
(D) pF & (IV) PV=nRT

Arrange the minerals based on the descending order of weatherability
(A) Biotite $>$ Augite $>$ Garnet $>$ Quartz
(B) Zircon $>$ Tourmaline $>$ Olivine $>$ Muscovite
(C) Albite $>$ Ilmenite $>$ Hornblende $>$ Olivine
(D) Anorthite $>$ apatite $>$ Zircon $>$ Titanite
Arrange the soil particles in the ascending order of its diameter (mm)
(A) silt
(B) clay
(C) fine sand
(D) coarse sand
Choose the correct answer from the options given below :
Quantity of $Na_2CO_3$ required to prepare 500 ml of 0.1N $Na_2CO_3$ is _______________.
Estimating the colored complex with chelating agent is _______________.
Point out the mobile nutrients in soil
Match List-I with List-II

List-I (Theory proposed) & List-II (Author)
(A) Father of fertilizer Chemistry & (I) Jackson
(B) Nutrient index & (II) Stanley A Barber
(C) Root interception & (III) Liebig
(D) Weathering index & (IV) Parker

Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A) : Surface tension of water is very high (72.7dynes/cm) compared to other liquids.
Reason (R) : High attraction of water molecules for each other is because of H bond.
In light of the above statements, choose the correct answer from the options given below.
Mass of sample in picogram method is _________ gram.
When the original value of N in urea is 46% and the estimated value is 5 %,then the relative error is _________ %.
Active absorption is governed by _________ theory.
Phosphorus is immobile in soil because
(A) phosphate ions are held by anion exchange
(B) Phosphate ions are held by ligand exchange
(C) Phosphate ions are adsorbed as sparing soluble phosphates of Fe/Al.Ca
(D) Phosphate ions are leached as completely soluble phosphates of Fe/Al.Ca
Choose the correct answer from the options given below :
Equivalent weight of a salt depends on _________.
The pH range at which the desirable colour change occurs for a particular indicator is _________.
_________ is the determination of one or few constituents from the sample.
Error in measurement caused by factors which vary with measurements is _________.
Remote sensing of vegetation characteristics is obtained by using
(A) UV rays
(B) Visible light
(C) Microwave
(D) Infrared rays
Choose the correct answer from the options given below :
Which of the following is true ?
(1) Uptake of Mo by plant reduces with S application
(2) Boron toxicity decreases with decreasing concentration of calcium
(3) Iron plays a synergistic role in relation to zinc
(4) High copper in soil cause dieback in citrus
Match List-I with List-II

List-I (Characteristic) & List-II (Terminology)
(A) $\text{Si}^{4+}$ is replaced by $\text{Al}^{3+}$ ions & (I) Ionic double layer
(B) Attachment of $\text{Ca}^{2+}$ on clay surface & (II) pH dependent charge
(C) $\text{Na}^+$ replacing other cations on clay surface & (III) Dispersion of clay
(D) H dissociated from hydroxyl ions on clay surface & (IV) Isomorphous substitution
Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A) : Primary objective of summer ploughing is opening of the soil crust and turn the soil underneath.
Reason (R) : It facilitates to sow the crops immediately after onset of monsoon.
In light of the above statements, choose the correct answer from the options given below.
Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A) : Crop residue on soil surface in conservation tillage systems can decrease the rate of soil temperature change.
Reason (R) : Surface residue increases the reflection of incident solar radiation.
In light of the above statements, choose the most appropriate answer from the options given below.
Arrange the following space mission (earlier to most recent)
(A) Radar Imaging Satellite-1
(B) Chandrayaan-2
(C) Mars orbital mission
(D) Indian National Satellite-1A
Choose the correct answer from the options given below :
Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A) : Sentinel satellite mission is one of the European Space Agency's next-generation earth-observation missions.
Reason (R) : There are six Sentinel satellites which provide free data to the user.
In light of the above statements, choose the most appropriate answer from the options given below.
Order the following electromagnetic radiation in terms of their decreasing energy level
(A) Infrared rays
(B) Gamma rays
(C) Visible rays
(D) Radio waves
Choose the correct answer from the options given below :
Arrange the following minerals in terms of increasing stability
(A) Biotite
(B) Quartz
(C) Hornblende
(D) Muscovite
Choose the correct answer from the options given below :