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Potassium dichromate: It is commonly used as an oxidizing agent in the determination of soil organic matter content. It reacts with organic matter, and the change in color indicates the amount of organic matter present. Ferrous ammonium sulphate: This reagent is used as a reducing agent in the soil organic matter determination. It reacts with the excess potassium dichromate after the oxidation reaction is complete. Diphenyl amine: It is used as an indicator in the determination of soil organic matter. It reacts with the reduced form of chromium, resulting in a color change. Sulphuric acid: Sulphuric acid is commonly used as a digestion reagent in the determination of soil organic matter. It helps break down organic matter and facilitates the oxidation process.
Which phenomenon does a hologram use to create an image?
If a force is applied to two stationary objects with different masses for the same duration, what will be the same for both objects?
Which of the following statement is/are true?
I. The materials which allow heat to pass through them easily are conductors of heat.
The point where the total mass of a body is considered to be concentrated is known as what?
The velocity of heat radiation in a vacuum is?
What are the dimensions of the coefficient of viscosity?
Which instrument is used to measure the moisture content in the air?
Tungsten is used for the manufacture of the filament of an electric bulb, because –
The base of an electric iron is brightly polished mainly -