Group 17 of periodic table consists of five elements, i.e., fluorine, chlorine, bromine, iodine and astatine. These elements are called Halogens. Fluorine is most reactive and hence is also called super halogen. Astatine is radioactive and hence occurs in nature only in traces.
Extracts of Silk Road have been taken from the chapter keeping the upcoming MCQ-Based Examination in mind. Students are advised to go through them one by one and read carefully in order to score better in forthcoming exams.
Extracts of The Adventure have been picked up from the chapter keeping the upcoming exams to be held in MCQ-Based form. All are advised to go through them carefully in order to understand the significance of the chapter.
Extracts of The Browning Version have been picked up from the chapter keeping the upcoming board and MCQ questions in mind. You all are advised to go through the questions and their options carefully.
The elements of Nitrogen family i.e. group 15 of the periodic table are: nitrogen (N), phosphorous (P), arsenic (As), antimony (Sb) and bismuth (Bi). Collectively, group 15 elements are called pnictogens and their compounds are called pniconides. (It means suffocation producing elements)
For the first time in human history, there is a growing worldwide consciousness that the earth itself is a living organism - an enormous being of which we are parts.
Coordination compounds are the compounds in which the central metal atom is linked to a number of ions or neutral molecules by coordinate bonds, i.e., by donation of lone pairs of electrons by these ions or neutral molecules to the central metal atom.
Keeping COVID 19 and its third wave in mind, CBSE (Central Board of Secondary Education), after holding consultations with Government and Private Independent Schools across the country, has introduced its special Scheme of Assessment for Board Examination Class X and Class XII for the session 2021-22. Following are the highlights of this special scheme introduced
A Roadside Stand revolves around the pathetic conditions of poor people living countryside. It highlights the staggering conditions of such people wherein they are ignored by all and sundry especially the city dwellers.
