Correct option is C
Flame photometry is commonly used to determine the potassium (K) content in soil. It works by measuring the intensity of light emitted by potassium ions when they are heated in a flame.
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Which instrument is used for the determination of K content in soil?
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- 1)
(i) Very dark, cracking clay-dominated soils;
(ii) locally called regur, karail, and bhal;
(iii) high clay varying from 30–60%, base-rich;
(iv) occur in Maharashtra, Madhya Pradesh, Gujarat, Rajasthan, Chhattisgarh and some parts of Karnataka and T.N. __________- is called
[A] Black Soils
[B] Alluvial Soils
[C] Red Soils
[D] Laterite and Lateritic SoilsChoose the correct answer from the options given below:
- 2)
The following is the list of pesticides:
[a] B.H.C.
[b] D.D.T.
[c] NaCN
[d] Heptachlor
[e] Carbendazim
Choose the correct answer from the options given below:
- 3)Quantity of Na₂CO₃ required to prepare 500 ml of 0.1 N Na₂CO₃ is ____.
- 4)Mutations are errors in DNA that:
- 5)Given below are two statements, one is labelled as Assertion (A) and the other one as Reason (R).
Assertion (A): Soil clay has maximum influence on soil behavior. Reason (R): Clay has a greater surface area per unit mass and is most physicochemical active.
In light of the above statements, choose the correct answer from the option below: - 6)
Objective of GIS
[A] Maximizing the efficiency of planning and decision-making.
[B] Providing efficient means for data distribution and handling.
[C] Elimination of redundant database – minimize duplication.
[D] Capacity to integrate information from many sources.
Choose the most correct answer from the options given below:
- 7)Match List-I with List-II
Choose the correct answer from the options given below:List-I (Land Capability Classes)
List-II (Colour)
(A) Class II
(I) Green
(B) Class IV
(II) Yellow
(C) Class III
(III) Brown
(D) Class I
(IV) Pink
- 8)
Match List-I with List-II
List-I (Characteristic)
(A) Si is replaced by Al³⁺ ions
(B) Attachment of Ca²⁺ on clay surface
(C) Na⁺ replacing other cations on clay surface
(D) H dissociated from hydroxyl ions on clay surface
List-II (Terminology)
(I) Ionic double layer
(II) pH dependent charge
(III) Dispersion of clay
(IV) Isomorphous substitution
Choose the correct answer from the options given below:
- 9)Which law the industries likely to cause environmental pollution should be examined by:
- 10)Active absorption is governed by ____ theory.
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