Daily Practice Problems
ICSE 10 Chemistry
Electrolysis
ICSE 10 Chemistry
Electrolysis
Question 1:
Element X is a metal with valency 2. Element Y is a non-metal with valency 3. a. Write equations to show how X and Y form ions. b. If Y is a diatomic gas, write equation for the direct combination of X and Y to form a compound. c. If the compound formed between X and Y is melted and an electric current is passed through the molten compound, element X will be obtained at the ________ and Y at the ________ of the electrolytic cell. [Level: Easy]
Question 2:
Write two applications of electrolysis in which anode diminishes in mass. [Level: Easy]
Question 3:
A strip of copper is placed in four different colourless salt solutions. They are KNO3, AgNO3, Zn(NO3)2, Ca(NO3)2. Which of the solutions will finally turn blue? [Level: Difficult]
Question 4:
The aqueous solution of the compound which contains both ions and molecules is:
(a) H2SO4
(b) HCl
(c) HNO3
(d) CH3COOH [Level: Moderate]
Question 5:
Correct the given statement: “Lead bromide conducts electricity.” [Level: Moderate]
Question 6:
The aqueous solution of Nickle sulphate contains Ni2+ and SO42- ions.
(a) Which ion moves towards cathode?
(b) What is the product at the anode? [Level: Moderate]
Question 7:
During electroplating of an article with nickel,
(i) Name
a. The electrolyte
b. The cathode
c. The anode
(ii) Give the reaction of electrolysis at
a. The cathode
b. The anode [Level: Moderate]
Question 8:
Give reason: Electrolysis of acidulated water is considered to be an example of electrolysis. [Level: Easy]
Question 9:
Give reason: An aqueous solution of sodium chloride conducts electricity. [Level: Moderate]
Question 10:
State which of these will act as a non-electrolyte:
(a) Liquid carbon tetrachloride
(b) Acetic acid
(c) Sodium hydroxide aqueous solution
(d) Potassium chloride aqueous solution [Level: Moderate]
Question 11:
Identify a gas which cannot conduct electricity in the liquid state but conducts electricity when dissolved in water. [Level: Moderate]
Question 12:
Give one word for: Electrolytic deposition of a superior metal on a baser metal. [Level: Easy]
Question 13:
State which electrode: anode or cathode is an oxidising electrode? Give a reason for the same. [Level: Moderate]
Question 14:
(a) Sodium chloride conducts electricity only in fused or aqueous solution state.
(b) In the electroplating of an article with silver, the electrolyte sodium argentocyanide solution is preferred over silver nitrate solution.
(c) Although copper is a good conductor of electricity, it is a non-electrolyte. [Level: Moderate]
Question 15:
M2O is the oxide of metal “M” which is above hydrogen in the activity series. M2O, when dissolved in water, forms the corresponding hydroxide which is a good conductor of electricity.
a. State the reaction taking place at cathode.
b. Name the product at the anode. [Level: Moderate]
Question 16:
Name the kind of particles present in
a. Sodium hydroxide solution
b. Carbonic acid
c. Sugar solution [Level: Moderate]
Question 17:
State an observation for: Electricity is passed through molten bromide. [Level: Moderate]
Question 18:
Give reasons for the following:
a. Electrolysis of molten lead bromide is considered to be a reaction in which oxidation and reduction go side by side, i.e., a redox reaction.
b. The blue colour of aqueous copper sulphate fades when it is electrolysed using platinum electrodes. [Level: Moderate]
Question 19:
Give reasons for the following:
a. Lead bromide undergoes electrolytic dissociation in the molten state but it is a non-electrolyte in the solid state.
b. Aluminium is extracted from its oxide by electrolytic reduction and not by conventional reducing agents. [Level: Difficult]
Question 20:
Give reasons for the following:
a. The ratio of hydrogen and oxygen formed at the cathode and anode is 2:1 by volume.
b. In the electrolysis of acidified water dilute sulphuric acid is preferred to dilute nitric acid for acidification. [Level: Moderate]
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In summary, problem-solving after learning a theoretical concept on CBSE Electrolysis ICSE 10 Chemistry is an essential part of the learning process. It enhances your understanding, critical thinking abilities, and retention of knowledge. Moreover, it equips you with valuable skills that are applicable in academic, personal, and professional contexts.
You must have heard of the phrase “Practice makes a man perfect”. Well, not just a man, practice indeed enhances perfection of every individual.
Practicing questions plays a pivotal role in achieving excellence in exams. Just as the adage goes, "Practice makes perfect," dedicating time to solve a diverse range of exam-related questions yields manifold benefits. Firstly, practicing questions allows students to familiarize themselves with the exam format and types of problems they might encounter. This familiarity instills confidence, reducing anxiety and improving performance on the actual exam day. Secondly, continuous practice sharpens problem-solving skills and enhances critical thinking, enabling students to approach complex problems with clarity and efficiency. Thirdly, it aids in identifying weak areas, allowing students to focus their efforts on improving specific topics. Moreover, practice aids in memory retention, as active engagement with the material reinforces learning. Regular practice also hones time management skills, ensuring that students can allocate appropriate time to each question during the exam. Overall, practicing questions not only boosts exam performance but also instills a deeper understanding of the subject matter, fostering a holistic and effective learning experience.
All About Daily Practice Problems on ICSE 10 Chemistry Electrolysis NCERT Chapter 6
Our Daily Practice Problems (DPPs) offer a diverse range of question types, including Multiple Choice Questions (MCQs) as well as short and long answer types. These questions are categorized into Easy, Moderate, and Difficult levels, allowing students to gradually progress and challenge themselves accordingly. Additionally, comprehensive solutions are provided for each question, available for download in PDF format - Download pdf solutions as well as Download pdf Questions. This approach fosters a holistic learning experience, catering to different learning styles, promoting self-assessment, and improving problem-solving skills. With our well-structured DPPs, students can excel in exams while gaining a deeper understanding of the subject matter. Hope you found the content on ICSE 10 Chemistry Electrolysis NCERT Chapter 6 useful.
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