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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.
Find the rank of the word 'PROPER' in dictionary order among all its permutations.
A person sells two items, X and Y. The marked prices of X and Y are 25% and 40% higher than their cost prices, respectively. After a 10% discount on bot...
A cyclist travels at a speed of 20 km/h. After riding for 2 hours, he stops for 30 minutes and then continues to ride at a speed of 15 km/h for another ...
A merchant faces a loss of 18% when selling a product for Rs. 656.20. Determine the cost price of the product.
Anil can do a piece of work in 14 days and Sunil can do the same work in 20 days. With the help of Vimal, they completed the same work in just 4 days. T...
If the homogeneous system of equations
x + y + z = 0
2x + 3y + 4z = 0
has a non-trivial solution, then the value of k is:
3x + 5y + kz = 0
The volume and height of a cylinder are 5346 cm3 and 21 cm. Find the radius of the cylinder.
A company has two machines: Machine A and Machine B. Machine A was bought for 75,000, and Machine B for 50,000. If the value of Machine A depreciates by...
