Frank ICSE Solutions for Class 9 Chemistry – WaterPAGE 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…

Frank ICSE Solutions for Class 9 Chemistry – Physical and chemical changesPAGE NO :74 Solution 1: A physical change is a temporary change in which no new substance is formed and the composition or identity of the substance is not altered although certai…

Frank ICSE Solutions for Class 10 Chemistry – Study Of Acids, Bases and SaltsPAGE NO : 62 Solution 1: Solution 2: (i) Hydrogen chloride HCl (ii) Nitric acid HNO3(i) Carbonic acid H2CO3 (ii) Oxalic acid (COOH)2(i) Sulphuric acid H2SO4 (ii) Hydrogen chlori…

Frank ICSE Solutions for Class 9 Chemistry – The Language of ChemistryPAGE NO :56 Solution 1: Symbol – It is the short form or abbreviation used for the name of an element. It represents one atom of that element. Formula – Formula of a compound represent…

Frank ICSE Solutions for Class 9 Chemistry – Elements, Compounds and MixturesPAGE NO :41 Solution 1:Elements: An element is a pure substance which can neither be broken down into simpler substances nor formed from two or more simpler substances by any kn…

Frank ICSE Solutions for Class 10 Chemistry – Chemical BondingPAGE N0 : 39 Solution 1: Chemical bond: A chemical bond may be defined as the linkage that stands for the force which actually holds the atoms together within the molecule. Chemical bonding: …

Frank ICSE Solutions for Class 9 Chemistry – Study of Gas LawsPAGE NO :21 Solution 1: An ideal gas can be characterized by three state variables:Absolute pressure (P),Volume (V), andAbsolute temperature (T).Solution 2: Solution 3: Solution 4: Solution…

Frank ICSE Solutions for Class 9 Chemistry – Matter and its Composition: Law of Conservation of Mass PAGE NO :8 Solution 1: Matter is anything around us which occupies space and has mass. Example- Coal, Copper, Water, Oxygen, Kerosene Key: Matter occup…

Frank ICSE Solutions for Class 10 Chemistry – Periodic Properties and Variation of PropertiesPAGE NO : 16 Solution 1: Modern periodic law states that the physical and chemical properties of elements are a periodic function of their atomic numbers i.e., i…