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a. How can a colloidal solution and true solution of the similar colour be distinguished from each other?
b. Give four applications of adsorption
basic structure
Q. Describe properties and uses of different silicate glasses and also discuss the importance of annealing in the manufacture of glass.
Artificial process for manufacture of Petrol or gasoline (a) Cracking, (b) Synthesis
#notes
An element L has 9 protons and valency 1. Another element M has valency 3 and 5. What is the difference in the number of electrons in L and M ?
Q. Transition elements of the f-block? The salient features of the chemistry of the transition elements of the f-block. Due to filling of electrons in the f-orbitals of an inne
Classify each reaction and give the name of all the chemical formula involved for each number. 1. Na2CO3(s) + SiO2(s) ? Na2SiO3(l) + CO2(g) 2. 2 Mg(NO3)2(s) ? 2 Mg(NO2)2(s) + O2
Q. Illustrate Classification of Matter? Pure Substances In order to understand what a pure substance is, you must think of it on an atomic level. Elements and compounds
discovered boron family
The atomic orbitals are progressively filled in order of increasing energy. This principle is called as: (1) Hund's rule (2)Aufbau principle (3) Exclusion principle (4
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