CBSE Class 10 Science Chemistry Study of properties of HCI Acid and NaOH Assignment
Objective: To carry out reactions of Hydrochloric acid and NaOH with: (a) Blue / red litmus, (b) Zn Metal, and (c) Sodium Bicarbonate. Requirement: Test tubes, litmus papers, Zn granule, solid NaHCO3, match box, dil. HCl acid, dil. NaOH solution, etc. Procedure: Take one…
CBSE Class 10 Science Chemistry Saponification Preparation of Soap Assignment
Objective: To study Saponification reaction for the preparation of Soap. Requirements: Sodium hydroxide, vegetable oil, ethanol, common salt, distilled water, beakers, measuring cylinder etc. Theory : Soaps are sodium or potassium salts of carboxylic acids with long…
CBSE Class 10 Science Chemistry Properties of Acetic Acid Assignment
Objective: To study two physical and two chemical properties of acetic acid. Requirements: Test tubes, Glass tubes (or dropper), Glacial acetic acid, ethanol, con. H2SO4, saturated solution of NaHCO3, lime water, etc. Concepts: Molecular formula: CH3COOH Structural formula…
CBSE Class 10 Science Chemistry Displacement Reaction and Reactivity Series Assignment
Objective: To study the interaction of metals namely copper, iron, zinc and Aluminium with their salt solutions and arrange them according to their reactivity. Principle: More reactive metals displace less reactive metals from their compounds. Example: CuSO4 + Fe →…
CBSE Class 10 Science Chemistry Different Types of Chemical Reactions Assignment
Combination reaction Objectives: To study the Combination reaction of Quick lime (CaO) in water Requirements: CaO, water, beaker, thermometer, stirrer, etc. Points to remember: 1. CaO is a white powder 2. It reacts with water to form slaked lime [Ca(OH)2] 3. This process…
CBSE Class 10 Science Chemistry Determination of pH Assignment
Objective: To find the pH of Dil HCl, Dil. NaOH, Dil. Acetic Acid, Lemon Juice, Water and Dil. NaHCO3 solution, using pH paper (or Universal Indicator). Requirements: strips of pH paper, test tubes, standard pH reference chart, and various samples Procedure: Take 1 ml of the…
CBSE Class 10 Science Chemistry Cleaning Capacity of Soap Assignment
Aim: To study the comparative cleaning capacity of a sample of soap in soft and hard water. Materials required: beakers, test tubes,Distilled water, Calcium chloride,glass rods,Pre -prepared soap solution ,Measuring cylinder ,Measuring scale etc Theory: Although soap is a…