ICSE 7 Chemistry
Language of Chemistry
Question 1:
When sodium carbonate reacts with dilute hydrochloric acid, the gas evolved is
(d) Carbon dioxide [Level: Difficult]
Question 2:
Gas which has rotten egg smell is
(a) Oxygen
(c) Hydrogen
(d) Ammonia [Level: Easy]
Question 3:
When lead acetate solution is added to potassium iodide solution a precipitate is formed which is
(b) white
(d) red [Level: Moderate]
Question 4:
Copper carbonate when heated it turns
(a) yellow
(d) blue [Level: Moderate]
Question 5:
Balancing a chemical equation is based on
(a) Symbols & formulae
(b) Mass of reactants & products
(c) Volume of reactants & products
(d) Law of conservation of mass [Level: Difficult]
Question 6:
What is a chemical equation? [Level: Easy]
Question 7:
What are reactants & products? [Level: Easy]
Question 8:
The substances which improves efficiency of catalyst is
(b) reactant
(d) precipitate [Level: Moderate]
Question 9:
Basic condition necessary for chemical reaction is
(a) catalyst
(c) light
(d) heat [Level: Easy]
Question 10:
In some chemical reactions, an insoluble substance is formed when two solutions are mixed. Insoluble substance is
(c) catalyst
(d) reactant [Level: Moderate]
Question 11:
Basic gas is obtained when 2 gases react in the presence of catalyst. Basic gas is
(a) CO2
(b) SO2
(d) NH3 [Level: Difficult]
Question 12:
Gas obtained when potassium chlorate is heated in presence of catalyst
(d) Ammonia [Level: Moderate]
Question 13:
The pale blue precipitate obtained when copper (II) sulphate reacts with sodium hydroxide is
(c) copper carbonate
(d) sodium carbonate [Level: Difficult]
Question 14:
Gas which reacts with hydrogen to give water is
(a) carbon dioxide
(b) nitrogen
(c) oxygen
(d) chlorine [Level: Easy]
Question 15:
Write the word equation for following chemical change:
Silvery residue obtained on heating mercury (II) oxide. [Level: Moderate]
Question 16:
Dilute hydrochloric acid is added to calcium carbonate. Describe the chemical change with the help of word equation. Also mention one product which is released as gas. [Level: Moderate]
Question 17:
Two non-metals which when heated react explosively when brought in close contact are
(a) Ag & O
(b) Cu & O
(c) Au & O
(d) H & O [Level: Moderate]
Question 18:
State the observations: When coal is burnt in oxygen. [Level: Moderate]
Question 19:
Take sodium bicarbonate & mix it with water. By using this paste write your name on the paper. You won’t be able to see your name. But if you take the same paper in sunlight & allow it to get hot, you would be able to see your name. Which substance is left on the paper?
(a) Sodium chloride
(d) Sodium nitrate [Level: Difficult]
Question 20:
Name the two gases which when combined results into a solid compound. [Level: Moderate]
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In summary, problem-solving after learning a theoretical concept on CBSE Language of Chemistry ICSE 7 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.
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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 7 Chemistry Language of Chemistry NCERT Chapter 5
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 7 Chemistry Language of Chemistry NCERT Chapter 5 useful.
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