Siderite
Magnetite
Galena
Pyrolusite
The most pure form of Carbon among the options is
The most reactive among the halogens is
The most suitable unit for expressing nuclear radius is:
The most suitable vessel for storing concentrated sulphuric acid is
The name of instrument used to measure the speed of the wind is
The name of unreactive gas is
The natural Pacemaker in the Human Heart is located in the SA node which is present in which among the following chambers?
The natural resource, known as black gold is
The natural source of hydro-carbon is
The necklace containers with a capacity of 2 liters have dye nitrogen as follows. Which of the following will have the most molecules under the same conditions
