State Board Commerce (XI-XII) - Test Papers
CBSE Board Exam 2018 – Exam Tips for Chemistry Question Paper
CBSE Class 10 Chemistry Guidance Lectures
Mahesh Tutorials and Robomate+ Expert Teachers Explain how to tackle the chemistry question paper.
Chemistry is part of science CBSE Syllabus. Given below are the topics of science. This exam guide will also help you to practice with CBSE 2018 Sample Papers Class 10. Download Robomate+ App and watch the complete Exam tips.
1. Chemical Substances – Nature & Behavior
2. World of Living
3. Natural Phenomenon
4. Effects of Current
5. Natural Resources
The following has been explained in detailed in the Exam tips / Guidance lecture.
1. Chemical substances nature behavior
1. Chemical Reactions and Equations
1. Valency Chart
If you know the valency charts and valencies of all the elements then you will be able to form the molecular formulas and write the chemical equations and balance the chemical equations.
Please download Robomate+ app and watch Exam tips for chemistry question paper. The following questions have been explained in detail. At the same you should also start practicing with CBSE 2018 Sample Papers Class 10.
What are the different types of questions that will come for chemical reactions and equations?
• Balance the chemical equations
• Self Balanced Equation
• Combination Reaction
• Exothermic Reaction
• Oxidation Reaction
How to Balance the Equations.
Question:
1. Balance the following equations.
2. Write the balanced chemical equations for the following reactions,
3. Write the balanced chemical equation for the following and identify the type of reaction in each case.
Displacement Reaction
Double Displacement Reaction
Combination Reaction
4. Translate the following statements into chemical equations and then balance them.
Nomenclature of Carbon Compounds
Naming a Carbon Compound
Exam tips and guidance covers the following topics and how to tackle them in your chemistry question paper. Please download Robomate+ app and watch Exam tips. Also remember to practice with CBSE 2018 Sample Papers Class 10.
Identify the number of carbon atoms in a compound.
Functional Group:
Carbohylic Acid
Double Bond.
Alcohol
Halogen
Aldehyde
Triple Bond
Ketome
Also find tips and guidance to tackle the following topics in your chemistry question paper. Please download Robomate+ app and watch Exam tips. Once you watch the exam guidance lecture you should attempt CBSE 2018 Sample Papers Class 10.
2. Acid, Bases and Salts
3. Metal and Non-metals
4. Carbon and its Compounds
5. Periodic Classification of Elements
Why is National Science Day Celebrated in India?
National Science Day is celebrated in India on the 28th of February every year. It is celebrated to mark Sir CV Raman’s discovery of the phenomenon of scattering of photons. This was later called the “Raman Effect” and Sir C.V. Raman was awarded the Nobel Prize in Physics for this discovery in 1930. To honour this great discovery the National Council for Science and Technology Communication (NCSTC) requested the government to designate this day as National Science Day.
Purpose of this day
This day is celebrated across the country to teach the importance of science and technology and their implementation among the people of the country. It is hailed as one of the main science festivals of the nation every year.
There are several purposes which are fulfilled with the celebration of National Science Day every year. These include:
- Imparting the message of the significance of science and technology in the daily life of the common people.
- To deliberate on the implementation and issues with new technologies that can be used for the development of science.
- To highlight the efforts, activities and achievements in the field of humanitarian science and technology.
- To encourage more people about the science and popularise it among the people of the country.
- To provide a platform for the scientific minded citizens of India to discuss and deliberate on various topics.
When was National Science Day first celebrated?
The National Council for Science and Technology Communication (NCSTC) requested the government of India in 1986 to declare 28th February as National Science Day. The first was celebrated National Science Day on 28th February 1987.
Since then every year this date is celebrated with great fervour among the scientific minded people of the country. Each year, there is a new theme that is selected to encourage debate and deliberation about different topics related to science and technology.
Science Paper Pattern for Std X SSC Board Exam 2019
Activities on National Science Day
There are many activities that take place across the country in schools and colleges on this day to help encourage students to become interested in the different fields of science. National as well as State Science Institutions also demonstrate their latest findings and research done on various topics and fields.
The celebration of National Science Day also comprises of screening of science movies, exhibitions relating to the designated theme of the year. There are talk shows, radio shows, public speeches, quizzes and debates organised by the various science institutions. Students and other scientific minded people can also take part in live projects, research and other scientific demonstrations such as night sky watching.
The theme for this year
The Theme for this year’s National Science Day 2020 is “Women in Science“.
The theme for National Science Day 2019 is ‘Science for people and people for science’.
The theme for National Science Day 2018 was “Science and Technology for Sustainable Future”. The topic is very important for the current situation as we are facing an increased danger of exhausting our perishable resources.
The focus has shifted to using science and technology towards harnessing renewable energy sources that can help to reduce pollution and prevent the depletion of the limited resources that we have. The development and research towards sustainable sciences is the main concern for scientists across the world.
Science and Technology for a sustainable future
The role of science and technology for building a sustainable future has become a topic that is being discussed across the world. With the resources steadily depleting, the importance of science being able to find a solution has become even more necessary now. The role of technology in sustainable development to fight against the challenges posed by man-made climate change is truly important at this stage.
How does technology affect sustainability?
Technology plays a crucial role in sustainable development. Whether it is social, economic or environmental, the role of technology to meet the goals of sustainable development can’t be denied. There is a great reluctance among governments and others to make political and social changes that are necessary to reduce the growth in production and consumption.
This is where the reliance on science and technology come into play. Most of the countries are now using science and technology to find the answers towards achieving a sustainable future and to solve the environmental problems that they are facing.
Using technology for sustainability
Today technology has progressed by leaps and bounds in all fields. Countries around the world are building models of sustainable growth based on the assumption that technology can help them create new or alternate sources to the resources that are depleting. The other idea is that science can help us find ways to reuse the remaining resources in an efficient way.
In the past science and technology had been used to create end-of-pipe remedies. This means that the focus was more on the cleaning up and controlling of the pollution. This method, however, failed to address the real causes of the problem. Soon the focus shifted to developing “clean technologies” that change the production process and create products that are themselves less harmful to the environment.
Importance of science in sustainable development
With National Science Day just around the corner, it is essential for students and budding scientists to understand the role that science plays in the development of a sustainable future. The need for thorough research into the scope of science in building a sustainable future has become steadily important now.
There has been the emergence of many application programs that are directed at finding the role of science in sustainability. This is related to the finding of alternative and renewable energy sources in order to reduce pollution. It also helps to avoid depleting the already scarce resources.
Importance in shaping economic sustainability
Science and technology can be used to develop sustainable fisheries and agriculture. By limiting the use of hormones, pesticides and antibiotics products can be created that are safe for consumption. This also helps in preventing the natural resources available in the world.
Research is the key to finding the ways to harness science and technology to fulfill the need for sustainable development. Educating yourself with the latest developments in sustainable sciences is a good place to start. Look for sustainable development examples in local businesses and teach others the importance of developing a sustainable future.
