Elements
magnesium and
oxygen respectively
belong to
group 2 and group 16 of the modern
Periodic Table . If the atomic numbers of
magnesium and oxygen
12 and 8
respectively drow their electronic configuration
and show the process of formation of their
compound by transfer of electrons.
Answers
Answer:
Explanation:
Metals and Non-Metals Chapter Wise Important Questions Class 10 Science
October 1, 2019 by Bhagya
Important Question for Class 10 Science Metals and Non-Metals PDF will help you in scoring more marks.. This consists of 1 mark Questions, 3 Mark Numericals Questions, 5 Marks Numerical Questions and previous year questions from Metals and Non-Metals Chapter.
Metals and Non-Metals Chapter Wise Important Questions Class 10 Science
Short Answer Type Questions[l] [2 Marks]-Year 2015
1.Write one example of each of
(i) a metal which is so soft that, it can be cut with knife and a non-metal which is the hardest sustance.
(ii) a metal and a non-metal which exist as liquid at room temperature.
Answer.
(i) Sodium, carbon (diamond).
(ii)Mercury is liquid metal, bromine is liquid non-metal.
2.Mention the names of the metals for the following:
(i) Two metals which are alloyed with iron to make stainless steel.
(ii) Two metals which are used to make jewellary.
Answer.
(i) Nickel and chromium.
(ii) Gold and platinum.
CBSE Class 10 Science – More Resources
NCERT Solutions for Class 10 Science NCERT Exemplar Class 10 Science
CBSE Class 10 Previous Year Question Papers Class 10 Science Important Questions
Short Answer Type Questions[ll] [3 Marks]-Year 2015
3.State three reasons for the following facts
(i) Sulphur is a non-metal
(ii)Magnesium is a metal
One of the reasons must be supported with a chemical equation.
Answer.
metals-non-metals-chapter-wise-important-questions-class-10-science-1
4.What is cinnabar? How is metal extracted from cinnabar? Explain briefly.
Answer. Cinnabar is HgS.
Mercury is obtained by roasting cinnabar. HgO formed is thermally unstable and gives mercury.
metals-non-metals-chapter-wise-important-questions-class-10-science-2