View PDF CBSE Class 10 Science Sample Paper Solved 2021 Set B

SECTION A   1. The danger signals installed at the top of tall buildings are red in colour. Why?    2. Why do all elements of the same group have similar properties?    3. In the Chlor-alkali process, a gas X is formed as byproduct. The gas X reacts with lime water to give a compound Y which used as a bleaching agent.   i) Identify X and Y.   ii) Write the chemical equation of the reaction involved in the formation of Y.   4. 1. The gene for red hair is recessive to the gene for black hair. What will be the hair colour of a person if he inherits a gene for

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Read the latest news and announcements from NCERT and CBSE below. Important updates relating to your studies which will help you to keep yourself updated with latest happenings in school level education. Keep yourself updated with all latest news and also read articles from teachers which will help you to improve your studies, increase motivation level and promote faster learning

Latest CBSE Syllabus for 2021 2022 PDF Download

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Looking to the present situation of the pandemic and school closures, and also taking in account the safety and well-being of the students, it is decided as follows:   1. The Board Exams for Class XIIth to be held from May 4th to June, 14th, 2021 are hereby postponed....

CBSE Class 12 Evaluation Criteria 2021

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CBSE asks schools to load Class 12 Internal Assessment Marks

This has a reference to the letter no CBSE/COORD/2021 dated 11.02.2021 regarding conduct of the School-Based Assessment (Internal Assessment/Practical/ Project) of Class-XII and uploading the marks by 11.06.2021. It has been observed that some schools have not been...

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