Frank ICSE Solutions for Class 9 Chemistry - Practical Work PAGE NO :170 Solution 1: On heating certain solids they don't melt and directly get converted to their gaseous form, this process of direct conversion of solids to their gaseous form is called as sublimation. For ex: camphor and ammonium chloride undergo sublimation.Solution 2: Decrepitation is a process of … [Read more...] about Frank ICSE Solutions for Class 9 Chemistry – Practical Work
Frank ICSE Solutions for Class 9 Chemistry
Frank ICSE Solutions for Class 9 Chemistry – Atmospheric Pollution
Frank ICSE Solutions for Class 9 Chemistry - Atmospheric Pollution PAGE NO :158 Solution 1: Acid rain is the rain that has an excessive amount of acid in it than that of normal. Two air pollutants that cause acid rain are-Oxides of nitrogenOxides of sulphurSolution 2: Acid rain is responsible for retarding forest's growth and other vegetation. … [Read more...] about Frank ICSE Solutions for Class 9 Chemistry – Atmospheric Pollution
Frank ICSE Solutions for Class 9 Chemistry – Study of the First Element – Hydrogen
Frank ICSE Solutions for Class 9 Chemistry - Study of the First Element - Hydrogen PAGE NO :146 Solution 1:(a) Symbol of hydrogen is 'H' and its molecular formula is H2. (b) 2 H means 2 atoms of hydrogen while H2 means one molecule of hydrogen. (c) Lavoisier gave "Hydrogen" its name because it means water product.Solution 2: Hydrogen is found in free state as … [Read more...] about Frank ICSE Solutions for Class 9 Chemistry – Study of the First Element – Hydrogen
Frank ICSE Solutions for Class 9 Chemistry – Atomic Structure
Frank ICSE Solutions for Class 9 Chemistry - Atomic Structure PAGE NO :113 Solution 1:Solution 2:Solution 3:(a) Mass of an atom - Protons and neutrons (b) Size of an atom - ElectronsSolution 4:Three fundamental particles of an atom are-Proton Electron NeutronSolution 5:(a) An atom - An atom is the smallest particle of an … [Read more...] about Frank ICSE Solutions for Class 9 Chemistry – Atomic Structure
Frank ICSE Solutions for Class 9 Chemistry – Water
Frank ICSE Solutions for Class 9 Chemistry - Water PAGE NO :96 Solution 1: The molecular formula of water is H2O, this shows that water is not an element but it is a compound made up of two elements hydrogen and oxygen combined in a fixed ratio, i.e., 1:8 by mass. This also shows that the properties of water is totally different from those of hydrogen and oxygen as … [Read more...] about Frank ICSE Solutions for Class 9 Chemistry – Water