Chemistry Neco Practical Questions And Answers

Here are Neco Chemistry practical questions:

Identification of Gases:

Identify the gases produced when a piece of zinc reacts with hydrochloric acid and distinguish between them using appropriate tests.

Synthesis of Aspirin:

Prepare aspirin from salicylic acid and assess the purity of the obtained product.

Electroplating:

Electroplate a metal object with a layer of copper and explain the principles involved in the process.

Investigation of pH:

Determine the pH of different solutions using a universal indicator and suggest their acidic, basic, or neutral nature.

Hydrolysis of Salts:

Investigate the hydrolysis of a salt solution and determine whether the solution is acidic, basic, or neutral.

Complexometric Titration:

Determine the hardness of water by complexometric titration with ethylenediaminetetraacetic acid (EDTA).

Determination of Melting Point:

Determine the melting point of a given organic solid and discuss its purity based on the melting point range.

Enzyme Activity:

Investigate the effect of temperature on the activity of catalase enzyme using hydrogen peroxide.

Preparation of Soap:

Prepare soap from vegetable oil and assess its cleansing properties.

Separation Techniques:

Separate a mixture of sand, common salt, and iron filings using appropriate separation techniques.

Reactivity Series:

Determine the reactivity series of metals by their reaction with dilute hydrochloric acid.

Kinetics of Reaction:

Investigate the effect of surface area on the rate of reaction between marble chips and hydrochloric acid.

Identification of Functional Groups in Organic Compounds:

Identify the functional groups present in organic compounds through chemical tests.

Determination of Heat of Solution:

Determine the heat of solution of a solid in water.

Verification of the Law of Conservation of Mass:

Perform experiments to verify the law of conservation of mass in chemical reactions.

Test for Reducing Sugars:

Test various food samples for the presence of reducing sugars using Benedict’s solution.

Preparation of Oxygen and Hydrogen:

Simultaneously prepare oxygen and hydrogen gases and test for their properties.

Determination of Relative Atomic Mass:

Determine the relative atomic mass of a metal by displacement of hydrogen gas.

Potentiometric Titration:

Determine the concentration of acetic acid in vinegar using potentiometric titration with sodium hydroxide.

Investigation of Factors Affecting Reaction Rates:

Investigate the factors affecting the rate of reaction between calcium carbonate and hydrochloric acid.