Experiment 5(A) Aim To determine the melting point of ice. Theory Melting poin is the temperature at which a solid melts to form a liquid. A pure solid always has a fixed melting point. When a solid is heated, at its melting point the temperature becomes constant and it remains constant till whole of the […]
Experiment 3(A) Aim To separate a mixture of common salt and sand. Theory In the given mixture of common salt and sand, only common salt is soluble in water. As such when the mixtured is stirred with water, only common salt goes into solution leaving behind the sand undissolved. The suspension is filtered when sand […]
Aim To Prepare (a) a mixture (b) a compound using iron fillings and sulphur powder and distinguish between these on the basis of (i) appearance i.e., homogeneity and heterogeneity,(ii) behaviour towards a magnet,(iiii) behaviour towards carbon disulphide solvent,(iv) effect of heat Theory A mixture can be differentiated from a compound in the following manner : […]
Experiment 1(A) Aim To prepare true Solutions of (i) common salt (ii) sugar and (iii) alum in water and study their properties like (a) transparency (b) filtration criterion and (c) stability. Materials Required Beakers, test tubes, test tube stand, glass rod, filter paper, funnel, funnel stand, pestle and mortar, common salt, sugar, alum, conc. H2SO4 […]