Explain the following named reaction: i)Sandmeyer reaction. ii)Gattermann reaction. Hint: Reactions known as “name reactions” are those named after their discoverers or…
Understanding Crystal Structures and Coordination Numbers To determine the coordination number of crystal structures, let’s first understand the basics of unit cells….
Picric acid, also known as 2,4,6-trinitrophenol, is an organic compound with a hydroxyl group and three nitro groups attached to a benzene…
Give one chemical test to distinguish between ethylamine and aniline. Hint: The reaction products of nitrous acid with aliphatic and aromatic amines…
Distinguish between the true solution and colloidal solution. Hint: In a true solution, the particle size of the solute in the solvent…
Write the difference between solid, liquid and gas phase? Hint:Anything that has mass and takes up space is known as matter. Matter…
For the electro-refining of copper. (i) What is the cathode made up of? (ii) Write the reaction that takes place at the…
In general , the number of electrons in the outermost shell of a metal atom is : A.1 B.1-3 C.1-8 D.8 Hint:…
State the basic postulates of Bohr’s theory of atomic spectra. Hint: Bohr’s theory focused on the particle-like nature of electrons, proposing that…
Who invented the first compound microscope? (a) Robert Hook (b) Robert Koch (c) Leeuwenhoek (d) Z. Janssen Hint: The first compound microscope…
