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3. Metals and Non-metals Science class 10 in English Medium ncert book solutions Additional Questions With Solutions
3. Metals and Non-metals Additional Questions With Solutions – Complete NCERT Book Solutions for Class 10 Science (English Medium). Get all chapter explanations, extra questions, solved examples and additional practice questions for 3. Metals and Non-metals Additional Questions With Solutions to help you master concepts and score higher.
3. Metals and Non-metals Science class 10 in English Medium ncert book solutions Additional Questions With Solutions
NCERT Solutions for Class 10 Science play an important role in helping students understand the concepts of the chapter 3. Metals and Non-metals clearly. This chapter includes the topic Additional Questions With Solutions, which is essential from both academic and examination point of view. The solutions provided here are prepared strictly according to the latest NCERT syllabus and follow the guidelines of CBSE to ensure accuracy and relevance. Each question is explained in a simple and student-friendly manner so that learners can grasp the concepts without confusion. These NCERT Solutions are useful for regular study, homework help, and exam preparation. All textbook questions are solved step by step to improve problem-solving skills and conceptual clarity. Students of Class 10 studying Science can use these solutions to revise important topics, understand difficult questions, and practise effectively before examinations. The chapter 3. Metals and Non-metals is explained in a structured way, making it easier for students to connect the theory with the topic Additional Questions With Solutions. By studying these updated NCERT Solutions for Class 10 Science, students can build a strong foundation, boost their confidence, and score better marks in school and board exams.
3. Metals and Non-metals
Additional Questions With Solutions
Additional Questions With Solutions:
Q1: Write three chemical properties of metals.
Ans: Three chemical properties of metals.
(i)All metals combine with oxygen to form metal oxides.
(ii)Metals react with water and produce a metal oxide and hydrogen gas.
(iii)Metals reacts with acids to give a salt and hydrogen gas.
Q2: Write three physical properties of metals.
Ans: Three physical properties of metals.
(i)Metals are ductile.
(ii)Metals are malleable.
(iii)Metals are sonorous.
Q3: What is amphoteric oxides? Give to examples.
Ans: The metals oxides which react with both acids as well as bases to produce salt and water and show both acids as well as basic behaviour are known as amphoteric oxides. Ex.- aluminium oxide and zinc oxide etc. q
Q4: Why are sodium or potassium kept immersed in kerosene oil?
Ans: Sodium or potassium reacts so vigorously that they catch fire if kept in open. Hence to protect them and to prevent to accidental fire they are kept immersed in kerosene oil.
Q5: The reaction metal X and Fe2 O3 is highly exothermic and is used to join railway.
(a) Identify metal X and name the reaction.
(b) Write the chemical equation of its reaction with fe2 O3.
Ans:
(a)X is (Al) Aluminium. Thermit Reaction.
(b)Fe2O3 (s) + 2Al(s) 2Fe(l) + Al2O3(s) + (Heat)
Q6: A metal X react with oxygen to form a blackish thin layer of oxide coat which protects itself to further corrosion.
(i)Identify the metal X.
(ii)What is called such a metal oxide.
(iii)What does it give to react with sodium hydroxide write its chemical equation.
Ans:
(i)Metal X is aluminium.
(ii)Aluminium oxide is called amphoteric oxides.
(iii)It react with sodium hydroxide gives sodium aluminate and water.
Q7: What is aqua regia?
Ans: Aqua regia is freshly prepared mixture of concentrated hydrochloric acid and concentrated nitric acid in the ratio of 3: 1. It is used to dissolve gold and clean the ornaments.
Q8: Why are the ornaments made of gold, silver and platinum?
Ans: Gold, silver and platinum have less reactivity so they don’t react with water and oxygen that cause corrosion. Hence the ornaments are made of gold, silver and platinum.
See other sub-topics of this chapter:
1. Chapter Review 2. Text-book Questions 3. Exercise 4. Additional Questions With Solutions 5. Additional Questions With Solutions