NCERT Solutions for Class 10 Science Chapter 3

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NCERT Solutions for Class 10 Science Chapter 3 - Metals and Non-metals

Metals and Non-metals are different types of elements present around us. Elements can be divided into metals and non-metals, and it is important to know whether a particular element is a metal or non-metal. Metals such as copper and aluminium are good conductors of heat as well as electricity, while non-metals such as phosphorus and sulfur are insulators. Therefore it is important to know the distinguished properties of metals and non-metals.

The NCERT Solutions for Class 10 Science Chapter 3 gives a clear idea about the various questions and solutions linked with the chapter so that students can study more effectively. Register Online for Class 10 Science tuition on to score more marks in Your Examination. Maths Students who are looking for better solutions ,they can download Class 10 Maths NCERT Solutions to help you to revise complete syllabus and  score more marks in your examinations.

Chapter 3 - Metals and Non-metals part-1
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FAQ (Frequently Asked Questions)

1. Which Non-Metal is Used as a Fuel in Rockets?

Ans: The non-metal which is used as fuel in rockets is liquid hydrogen. There are separate hydrogen and oxygen tanks that combine and burn the rocket. Hydrogen has a high calorific value. Hence, it is used as fuel. A few of the other nonmetals that are used as fuel are Carbon and its form Graphite. Liquid hydrogen yields the highest specific impulse or efficiency in relation to the amount of propellant consumed, of any known rocket propellant. Other common uses of liquid hydrogen in the space industry are for clean transportation. Liquid hydrogen and liquid oxygen are still used to launch several European rockets.

2. What are the Eight Metalloids?

Ans: Metalloids occur along the diagonal stair-step between metals and nonmetals. The events which are known as metalloids are boron, silicon, germanium, arsenic, antimony, tellurium, astatine and polonium. The elements to the upper right of this line display non-metallic behaviour while the elements in the lower left display metallic behaviour. Metalloids have characteristics of both metals and nonmetals. Most metals are brittle and have a metallic lustre. They have a solid-state of matter and generally have non-metallic chemical properties. Other properties of metalloids include; good semiconductors, forms alloys when comes in contact with metals and are less conductive than metals.

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