NCERT Solutions for Class 10 Science Chapter 5 Periodic Classification of Elements in Hindi PDF Download
Download the Class 10 Science NCERT Solutions in Hindi medium and English medium as well offered by the leading e-learning platform Vedantu. If you are a student of Class 10, you have reached the right platform. The NCERT Solutions for Class 10 Science in Hindi provided by us are designed in a simple, straightforward language, which are easy to memorise.
You will also be able to download the PDF file for NCERT Solutions for Class 10 Science in English and Hindi from our website at absolutely free of cost. You can also download NCERT Solutions for Class 10 Maths from Vedantu, which are curated by master teachers.
NCERT, which stands for The National Council of Educational Research and Training, is responsible for designing and publishing textbooks for all the classes and subjects. NCERT textbooks covered all the topics and are applicable to the Central Board of Secondary Education (CBSE) and various state boards.
We, at Vedantu, offer free NCERT Solutions in English medium and Hindi medium for all the classes as well. Created by subject matter experts, these NCERT Solutions in Hindi are very helpful to the students of all classes.
FAQs on NCERT Solutions for Class 10 Science Chapter 5 Periodic Classification of Elements in Hindi
1. What were the limitations of Dobereiner’s classification?
The Dobereiner’s Classification of triads of elements was quite successful in predicting the atomic mass and properties of the middle element. Further, this classification suggested that the properties of elements are connected to their atomic masses.
However, Dobereiner's classification had three limitations, which were:
The triads could not fit all the known elements at the time.
Elements with high or low mass could not be placed in the triad.
As improved methods to calculate mass were discovered the triad classification lost its potency.
2. Why does hydrogen occupy a unique position in the Modern Periodic Table?
It is difficult to decipher the position of hydrogen since it matches the properties of more than one group of elements so it can have two places. The two reasons for hydrogen to have a unique place in the Modern Periodic Table are:
Its electronic configuration is like the alkali metals since both have 1 electron in their outer shell.
Halogens and Hydrogen both have the same electronic configuration, hence they have similar properties.
3. If an element X is placed in group 14, what will be the formula and the nature of bonding of its chloride?
Element X is placed in group 14, so its valency will be 4. While we know the atomic number of Chlorine is 17 and its valency is 1. Therefore, element X will form a covalent bond with 4 atoms of chlorine resulting in XCl₄. By this, we figure that element X is most likely Carbon.
These types of questions are common in the examination. It is important you go through them thoroughly for good scores.
4. Besides gallium, which other elements have since been discovered that were left by Mendeleev in his periodic table? (Any two)
Germanium (Ge) and Scandium (Sc) were two elements that fill the gaps in Mendeleev’s periodic table as they were discovered later. The periodic table suggested by Mendeleev had certain limitations like no place for isotopes, the position for hydrogen was unknown, and so on. You can gain insight about his periodic table on NCERT Solutions for Class 10th Science- Chapter 5 available on the Vedantu website and the app. Periodic table is a basic chapter for higher classes so preparing it well is extremely helpful.
5. Are NCERT Solutions for Class 10 Science Chapter 5 helpful for the board exams?
Board exams put a lot of pressure on the students. It is necessary that the students refer to books with accurate study materials and syllabus to focus their energy properly. NCERT Solutions for Class 10 Science Chapter 5 provide students with reliable information curated by subject experts and elaborate explanations of all the topics for better comprehension of each chapter. These solutions can be downloaded free of cost from the website. With intensive preparation using NCERT Solutions, the students can be ready to ace their Science board exam.