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NCERT Solutions Class 10 Science Chapter 1
Class 10 is the first stepping stone for a student in the competitive world. With the introduction of CBSE Board Exam for class 10 a few years back, this has become an important gateway for a student as based on the results of class 10th a student select his future stream of Science, Commerce or Arts. Out of all subjects if a student wants to take science stream then science is considered as one of the most Canada Ncert 3 Class Solutions Chapter Science 10th Class 10th Science Chapter 3 Ncert Solutions Canada important and interesting subjects in school. Understanding of basics of science is also very important for every Class 10th Science Chapter 3 Ncert Solutions Canada student even if they are not keen in taking science after Class 10th to get. Class 10th Science syllabus is full of exciting Physics, Chemistry and Biology topics. From the famous laws of motion to the working of the human eye, you will find explanations to various phenomena in class 10 science textbook. The NCERT book has 16 chapters in total. In this blog we will be adding discussing ncert class 10 science solutions! This Blog Includes: Chapter 1- Chemical Reactions and Equations. Chapter 2- Acids, Bases and Salts. Chapter 3- Metals and Non-Metals. Chapter 4- Carbon and its Compounds. Chapter 5- Class 10th Science Chapter 3 Ncert Solutions Canada Class 10th Science Chapter 3 Ncert Solutions Canada Periodic Classification of Elements. Chapter 3 Metals and Non-metals: In NCERT class 9 we have already learnt about elements. Metals and non-metals can be classified on the basis of their properties. This chapter starts Class 10th Science Chapter 3 Ncert Solutions Canada Class 10th Science Chapter 3 Ncert Solutions Canada with physical properties of metals and non-metals like melting point, physical properties at room temperature, tensile strength, appearance and covers all chemical properties of metals and non-metals, reactions of metals and non-metals with oxygen gas, water, other metal salts, and acids.� Students must check the NCERT Solutions for Class 10 Class 10th Science Chapter 3 Ncert Solutions Canada Science Chapter 5 Periodic Classification of Elements as it is very useful in class 11th and 12th. Chapter Class 10th Science Chapter 3 Ncert Solutions Canada 6 Life Processes: How do we differentiate if someone is alive or not? Generally by the Class 10th Science Chapter 3 Ncert Solutions Canada visible movements like running, shouting, or breathing.

We have included all the important questions from Metals and Non Metals similar to that of your chapter 3 science Class 10 notes to help you secure 10th Solutions 3 Canada Class Ncert Science Chapter Class 10th Science Chapter 3 Ncert Solutions Canada a good score in Class 10 science exam. Question 1 Give an example of a metal which : i is a liquid at room temperature.

Answer: i Mercury ii Sodium iii Silver iv Lead. Question 2 Explain the meanings of malleable and ductile. Answer: Malleable : A metal that can be beaten into thin sheets on hammering is called malleable. Ductile : A metal which can be drawn into thin wires is called ductile. Question 1 Why is sodium kept immersed in kerosene oil? Answer: Sodium is highly reactive. So it is kept immersed in kerosene oil to prevent its reaction with oxygen, moisture and Chapter Ncert Science 10th Canada Class Solutions 3 carbon dioxide of air to prevent accidental fires.

Question 2 Write equations for the reactions of i Class 10th Science Chapter 3 Ncert Solutions Canada iron with steam. Question 3 Samples of four metals A, B, C and D were taken and Class 10th Science Chapter 3 Ncert Solutions Canada added to the following solution one by one. The results obtained have been tabulated as follows :. Answer: i B is the most reactive metal because it gives displacement reaction with iron II sulphate. Metal A is less reactive because it displaces copper from its salt solution. Metal C is still less Class 10th Science Chapter 3 Ncert Solutions Canada reactive because it can displace only silver from its salt solution and metal D is the least reactive because it cannot displace any metal from its salt solution.

Question 4 Which gas is produced when dilute hydrochloric acid is added to a reactive metal? Write the chemical reaction when iron reacts Class 10th Science Chapter 3 Ncert Solutions Canada with dilute H 2 SO 4. Answer: Hydrogen gas is produced when dilute hydrochloric acid is added Science Solutions Chapter 3 Ncert Class Canada 10th to a reactive metal.

Question 5 What would you observe when zinc is added to a solution of iron II sulphate? Write the chemical reaction that takes place. Answer: Zinc is more reactive than iron. Therefore, when zinc is added to a solution of iron II sulphate, then the greenish colour of iron II sulphate solution fades gradually due to the formation of colourless zinc sulphate solution and Class 10th Science Chapter 3 Ncert Solutions Canada iron metal is deposited on zinc.

Question 1 i Write the electron dot structures for sodium, oxygen and magnesium. Question 2 Why do ionic compounds have high melting points? Answer: The ionic compounds are Science 10th Class 3 Chapter Ncert Canada Solutions made up of positive and negative ions. There is a strong force of attraction between the oppositely charged ions, so a lot of heat energy is required to break this force of attraction and Class 10th Science Chapter 3 Ncert Solutions Canada Class 10th Science Chapter 3 Ncert Solutions Canada melt the ionic compound.

Due to this, ionic compounds have high melting points. Question 1 Define the Class 10th Science Chapter 3 Ncert Solutions Canada following terms : i Mineral, ii Ore and iii Gangue. Answer: i Mineral : The natural materials in which the metals or their compounds are found in earth are called minerals.

Question 3 What chemical process is used for obtaining a metal from its oxide. Answer: Reduction process is used for obtaining a Class 10th Science Chapter 3 Ncert Solutions Canada metal from its oxide. For example, zinc oxide is reduced to metallic zinc by heating with carbon.Class 10th Science Chapter 3 Ncert Solutions Canada

Besides carbon, highly reactive metals like sodium, calcium, aluminium etc. These displace metals of low reactivity from their oxides. Question 1 Metallic oxides of zinc, magnesium and copper were heated with the following metals :. In Class 10th Science Chapter 3 Ncert Solutions Canada which cases will you find displacement reactions taking place? Answer: A more reactive metal can displace a less reactive metal from its oxide.

But out of zinc, magnesium, and copper metals, magnesium is the most reactive, zinc is less reactive whereas copper is the least reactive metal. Question 3 What Class 10th Science Chapter 3 Ncert Solutions Canada Class 10th Science Chapter 3 Ncert Solutions Canada are alloys? Answer: An alloy is a homogeneous mixture of two or more metals, or a metal and a non-metal.

For example, bronze is an Ncert Solutions For Class 10th Science Chapter 3 Ess alloy of copper and tin. Metals and Ncert Solutions For Class 10th Science Chapter 3 Relations Nonmetals Class Class 10th Science Chapter 3 Ncert Solutions Canada Class 10th Science Chapter 3 Ncert Solutions Canada Class 10th Science Chapter 3 Ncert Solutions Canada 10 Question 1. Which of the following pairs will give displacement reactions? Answer: d AgNO 3 solution and copper metal. Question 2. Which of the following methods is suitable for preventing an iron frying pan from rusting?

Answer: c Applying a coating of zinc. Question 3. An element reacts with oxygen to give a compound with a high melting point. This compound is also soluble in water. The element is likely to be a calcium b carbon c silicon d iron Answer: a Calcium. Question Class 10th Science Chapter 3 Ncert Solutions Canada 4. Food cans are coated with tin and not with zinc because a zinc is costlier than tin b zinc has a higher melting point than tin c zinc is less reactive than tin d zinc is more reactive than tin.

Answer: d Zinc is more reactive than tin. Metals and Non metals Class 10 Question 5. You are given a hammer, a battery, a bulb, wires and a switch. Answer: a Metals can be beaten into thin sheets with a hammer without breaking. Non-metals Class 10th Science Chapter 3 Ncert Solutions Canada cannot be beaten with a hammer to form thin sheets. Non-metals break into pieces when hammered. Metals are malleable, while non-metals are non-melleable.

When metals are connected into circuit using a battery, bulb, wires and switch, current passes through the circuit and the bulb glows. When non-metals like sulphur are connected, the bulb does not light up at all.

Metals are good conductors of electricity. Metals are good conductors of electricity so these can be used for electrical cables. Question 6. What are amphoteric oxides? Give two examples of amphoteric oxides? OR Write chemical equations that show aluminium oxide reacts with acid as well as base. In other words, metal oxides that react wtih both acids and bases to Class 10th Science Chapter 3 Ncert Solutions Canada Class 10th Science Chapter 3 Ncert Solutions Canada form salt and water are called amphoteric oxides.

Aluminium oxide and zinc oxide are amphoteric in nature. Question Class 10th Science Chapter 3 Ncert Solutions Canada 7. Name two metals which will displace hydrogen from dilute acids and two metals which will not. Answer: i Metals above hydrogen in the activity series like sodium and magnesium displace hydrogen from dilute acids. Question 8. In the electrolytic refining of a metal M, what would you take as Class 10th Science Chapter 3 Ncert Solutions Canada Class 10th Science Chapter 3 Ncert Solutions Canada the anode, the cathode and the electrolyte?

Question 9. Pratyush took sulphur powder on a spatula and Class 10th Science Chapter 3 Ncert Solutions Canada heated it. He collected the gas evolved by inverting a test tube over it, as shown in the figure. Answer: i Dry litmus paper � no action. Question State two ways to prevent the Class 10th Science Chapter 3 Ncert Solutions Canada rusting of iron. Answer: Ways to prevent rusting of iron are : a By painting b By galvanizing.Class 10th Science Chapter 3 Ncert Solutions Canada

What type of oxides are formed when non-metals combine with oxygen? Answer: Non-metals combine with oxygen to Chapter Ncert Class Canada 10th Solutions 3 Science form acidic oxides or neutral oxides. Give reasons : a Platinum, gold and silver are used to make jewellery. Answer: a Platinum, gold and silver are used to make jewellery because these are malleable and ductile. These are highly resistant to corrosion. This is due to their low ignition temperature and high reactivity.

This layer prevents aluminium to react with other substances. Since it is easier to obtain metals Class 10th Science Chapter 3 Ncert Solutions Canada Class 10th Science Chapter 3 Ncert Solutions Canada from their oxides than from their carbonates or sulphides directly, therefore, the carbonate and sulphide ores are first converted to oxides for extracting the metals.

You must have seen tarnished copper vessels being cleaned with lemon or tamarind juice. Explain why these sour substances are effective in cleaning the vessels. Answer: The sour substances such as lemon or tamarind juice contain acids. These acids dissolve the coating of copper oxide or basic copper carbonate present on the surface of tarnished copper vessels and makes them Class 10th Science Chapter 3 Ncert Solutions Canada Class 10th Science Chapter 3 Ncert Solutions Canada shining red-brown again.

Differentiate between metal and non-metal on the basis of their chemical properties. A man went door-to door posing as a goldsmith. He promised to bring back the glitter of old and Class 10th Science Chapter 3 Ncert Solutions Canada dull gold ornaments. An unsuspecting lady gave a set of gold bangles to him which he dipped in a particular solution. The bangles sparkled like new but their weight was reduced drastically.

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