Potassium dichromate: It is used as an oxidizing agent in the Walkley-Black method, which is commonly used to determine soil organic matter content. Ferrous ammonium sulphate: It acts as a reducing agent in the Walkley-Black method to react with the excess potassium dichromate. Diphenyl amine: It is used as an indicator in the Walkley-Black method to determine the endpoint of the reaction between the oxidizing and reducing agents. Sulphuric acid: It is used as a digestion reagent to facilitate the breakdown of organic matter in the soil sample.
The Trans-Siberian Railway connects ______ in the West to ______ in the East.
Mount Damavand is found in which mountain range?
Arrange the following North-Eastern hills in order starting from North to South:
1. Lushai Hills
2. Manipur Hills
3. Patkai ...
What type of erosion results in the formation of 'Mushroom rock' in desert regions?
Cyclones are called by different names in different countries/regions. Which pair is not correctly matched?
Mount Kosciuszko is located in which country?
The McMahon Line serves as a de facto boundary between which two countries?
With which one of the following countries, India shares maximum length of the border?
How long does it take for light to travel from the Moon to Earth?
What is the characteristic feature of Narmada Valley?
