Preparing for the ISC Chemistry 2020 Practical: Key Components and Tips

The Indian School Certificate (ISC) Chemistry practical is a critical component of your overall chemistry curriculum. To ensure you are well-prepared, a thorough understanding of the key components such as titration and salt analysis is essential. While your school teacher will likely provide you with specific information a few days before the exams, here's an overview of what you can expect to encounter in the practical portion of the Chem Board exams.

Titration: Potassium Permanganate and Mohr's Salt

Titration is a fundamental technique used in both organic and inorganic chemistry. You can anticipate seeing titration of potassium permanganate (KMnO4) against Mohr's salt in your practicals. Let's break down the key details you should be familiar with:

Potassium Permanganate (KMnO4)

Molecular Mass (MM): 158 g/mol Strength: 1.60 g/dL

Mohr's Salt (NH4)2SO4 · FeSO4 · 6H2O

Molecular Mass (MM): 392 g/mol Strength: 20.3 g/dL

Organic Sample Analysis

Another component of the chemistry practicals involves the analysis of organic samples such as formaldehyde and acetone. This is an important part of the exam as it tests your understanding of chemical reactions and their applications.

Salt Analysis: Aluminium Sulphate

The salt analysis practical is a core part of the chemistry curriculum, and aluminium sulphate (Al2(SO4)3) is highly expected to be included in the 2020 ISC exams. Here are some key points to remember:

Aluminium Sulphate (Al2(SO4)3)

Molecular Mass (MM): 342 g/mol Roles in Practical: Identification, Properties, and Reactions

Practical Steps for Salt Analysis

Identification: Determine the chloride, sulfate, and aluminum ions through specific tests like the addition of hydrochloric acid, barium chloride, and sodium hydroxide. Properties: Study the solubility and behavior of the salt in different environments. Reactions: Conduct tests to observe how the salt interacts with other reagents.

General Tips for Success

To excel in the ISC Chemistry practicals, follow these general tips:

Thoroughly review your class notes, lab manuals, and any additional resources provided by your teachers. Practice experimental techniques and procedures used in titration and salt analysis. Understand the theoretical and practical aspects of each topic to enhance your problem-solving skills. Seek feedback from your teachers and peers to refine your understanding and technique.

Conclusion

Preparing for the ISC Chemistry practicals requires a combination of theoretical knowledge and practical skills. By focusing on key components like titration and salt analysis, you can ensure that you are well-equipped to perform well in your exams. Best of luck with your studies and the upcoming practicals!