Here are some critical Chapter 3 Metal and Non- Metals problems for Class 10 Science. These inquiries are intended to aid students in studying for and performing well on the CBSE Class 10 Science Examination 2023–24. Students can clear up their concerns and be ready for the exams by practising different types of questions. By answering these questions, you'll increase your confidence while also sharpening your problem-solving abilities.
In Chapter 3 of Class 10 Science, "Metals and Non-Metals," students delve into the exploration of various aspects of matter, including its physical and chemical properties. This chapter also delves into the intriguing subjects of the reactions between metals and non-metals, the occurrence of metals, and the phenomenon of corrosion.
Lustre means to shine. Shining metals are also called lustrous metal. Non metal such as sulphur, oxygen , nitrogen are non-lustrous but iodine is a greyish black solid and its crystals have a metallic lustre.
Oxides of aluminium show both acidic and basic behaviour and hence it is amphoteric oxide.
Most of the metals do not react with HNO3 because nitric acid is a strong oxidising agent. Hence, when metals (except Mn and Mg) are treated with nitric acid; hydrogen gas is not liberated. Only magnesium and manganese can produce hydrogen gas with very dilute nitric acid.
Electric wires are made up of copper because it is a good conductor of electricity and cheaper than any other metallic wire.
Metals are the elements that conduct heat and electricity and are malleable and ductile.Example: Iron, aluminium, copper gold and silver.
oswal.io offers a thorough set of questions for learning the topic in a better way if you're looking to further practise and improve your grasp of the concepts covered in the chapter.
Ans: Non-metal is a chemical element that does not have metal’s properties. Some gases include hydrogen, helium, oxygen, nitrogen, fluorine, neon, radon and many more.
Ans: Many chemical elements are referred to as metals. These are the bulk of the periodic table elements. Generally, such components have the following characteristics: these can conduct heat and electricity. They can be easily shaped.
Ans: Oxygen is a non-metal that is used for breathing by plants and animals. It is essential to maintain our life. It is used in the process of fuel-burning in homes, factories, and vehicles for transport.
Ans: Oxygen is an essential non-metal for our life and it is inhaled during breathing by all living beings.
Ans: The non-metal used in the rockets is liquid hydrogen. They are separate hydrogen and oxygen tanks that combine and burn to start the rocket. Due to its high calorific value, hydrogen is used.