Here, you'll discover significant inquiries pertaining to Chapter 10: Study of Compounds : Sulphuric Acid for ICSE Class 10 Chemistry. These inquiries are carefully designed to aid students in preparing for the ICSE Class 10 Chemistry Examination in 2023–24. Engaging with different question formats allows students to address uncertainties, improve their exam preparedness, boost their self-assurance, and polish their ability to solve problems.
In ICSE Class 10 Chemistry Chapter 10 "Study of Compounds: Sulphuric Acid," you will delve into various aspects of sulphuric acid. The chapter covers the manufacturing process using the Contact Process, along with equations and relevant conditions where applicable. Furthermore, you will explore sulphuric acid's behaviour when in a diluted state, examining its reactions with various substances such as metals, metal oxides, metal hydroxides, metal carbonates, metal bicarbonates, metal sulphites, and metal sulphides. The chapter also delves into the concentrated sulphuric acid's role as an oxidising agent, focusing on its capacity to oxidise carbon and sulphur. Additionally, it explores sulphuric acid's role as a dehydrating agent, specifically in the dehydration of sugar and the formation of Copper (II) sulphate crystals. Moreover, you will learn about the non-volatile nature of sulphuric acid and its reactions with sodium or potassium chloride and sodium or potassium nitrate. These insights into sulphuric acid's properties and reactions will deepen your understanding of this important compound and its applications in various chemical processes.
In ICSE Class 10 Chemistry Chapter 10 "Study of Compounds: Sulphuric Acid," the focus is on a detailed examination of the chemical compound known as sulphuric acid (H2SO4). This chapter provides comprehensive coverage of various aspects related to sulphuric acid, serving as a foundational study for students. Sulphuric acid is a crucial compound in the realm of chemistry and industry, and this chapter delves into its key attributes and applications. It encompasses the following key areas:
Overall, this chapter provides students with a comprehensive understanding of sulphuric acid, its unique properties, and its diverse roles in various chemical reactions and processes. The knowledge gained from this chapter is essential for a thorough grasp of chemistry and its practical applications.
Ans. (d) Dibasic acid
Explanation:
H2SO4 when dissolved in water shows the following reactions:
H2SO4 + H2O ⇌ H3O+ + HSO4-
HSO4- + H2O ⇌ H3O+ + SO4-
Since it forms hydronium ions with water, i.e., it donates H+ ion. Therefore, it is acidic in nature. Also, it donates two H+ in two stages; therefore, it is dibasic in nature. Hence sulphuric acid is a dibasic acid.
Ans. (C) Oleum
Explanation:
Oleum is a common name of a compound having molecular formula H2S2O7. This compound is also known as pyrosulphuric acid. It is produced during the manufacturing of sulphuric acid in the contact Process.
Explanation:
When sulphuric acid is added to sodium carbonate it liberates carbon dioxide which produces brisk effervescence.
Explanation:
(i) In lead accumulators or in storage batteries.
(ii) In the manufacture of other acids like nitric acid, hydrochloric acid and phosphoric acid.
(iii) For cleaning metals before enamelling, electroplating and galvanising, as a pickling agent.
Explanation:
When concentrated sulphuric acid is added to hydrated copper sulphate, it loses its water of crystallisation and thus white anhydrous copper (II) sulphate is formed. In other words, The blue coloured hydrated (II) sulphate turns white due to the loss of water from crystallisation.
\(\underset{\underset{\text{(Blue crystals)}}{\text{hydrated copper sulphate}}}{CuSO_4.5H_2O}+\underset{\text{Conc}}{[H_2SO_4]} → \underset{\underset{\text{(White crystals)}}{\text{Anhyrous copper sulphate}}}{CuSO_4}+[H_2SO_4.5H_2O]\)
The exploration of "Study of Compounds: Sulphuric Acid" in ICSE Class 10 Chemistry has provided a deep and comprehensive understanding of this essential chemical compound. Throughout this chapter, we've delved into the manufacturing process of sulphuric acid through the Contact Process, examining equations and the relevant conditions. For those aiming to excel in the realm of chemistry, additional practice and resources are invaluable. To facilitate your learning process and strengthen your grasp of sulphuric acid, oswal.io offers a comprehensive collection of questions and study materials. These resources not only provide opportunities to assess your knowledge but also offer avenues to enhance your proficiency in this intriguing field.
Ans: The reaction between water and concentrated H2SO4 is an exothermic reaction. If water is added to the concentrated acid, the temperature increases suddenly. As the acid is in larger quantities, it gushes out enormously with severe repercussions.
Ans: The gas that is evolved when sodium sulphide is added to a solution of HCl is Hydrogen sulphide. The odour of Hydrogen sulphide is that of rotten eggs.
Ans: The property of sulphuric acid accounting for its property of a dehydrating agent is its strong affinity towards water.
Ans: Impurities of arsenic oxides must be removed before it is passed through the mixture of SO2 and air through the catalytic chamber as these impurities are toxic to the catalyst. It poisons thereby deactivating the catalyst.
Ans: (a) When sulphur dioxide is dissolved in water, sulphuric acid is formed
(b) When sodium carbonate is added to a solution of sulphur dioxide, carbon dioxide is released.