ICSE Class 10 Chemistry Question 23 of 23

Solved 2024 Specimen Paper ICSE Class 10 Chemistry — Question 23

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Question

Question 8(iv)

Identify the following substances:

(a) An alkaline gas which produces dense white fumes when reacted with HCl gas.

(b) The anion present in the salt, which produces a gas with the smell of rotten eggs when reacted with dil. HCl.

(c) The particles present in strong electrolytes.

Answer

(a) Ammonia

(b) Sulphide [S2-]

(c) Mainly ions.


Source: This question is from Solved 2024 Specimen Paper ICSE Class 10 Chemistry, Chemistry — Class 10, ICSE Board.

Key Concepts Covered

This question tests your understanding of the following concepts from the chapter Solved 2024 Specimen Paper ICSE Class 10 Chemistry: Question, Substances, Alkaline, Gas, Produces, Dense. These are fundamental topics in Chemistry that students are expected to master as part of the ICSE Class 10 curriculum.

A thorough understanding of these concepts will help you answer similar questions confidently in your ICSE examinations. These topics are frequently tested in both objective and subjective sections of Chemistry papers. We recommend revising the relevant section of your textbook alongside practising these solved examples to build a strong foundation.

How to Approach This Question

Read the question carefully and identify what is being asked. Break down complex questions into smaller parts. Use the terminology and concepts discussed in this chapter. Structure your answer logically — begin with a definition or key statement, then provide supporting details. Review your answer to ensure it addresses all parts of the question completely.

Key Points to Remember

  • Balance chemical equations before solving numerical problems.
  • Learn the periodic table trends and exceptions.
  • Understand reaction mechanisms, not just outcomes.
  • Use correct IUPAC nomenclature in your answers.

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