Introduction Method of Kjeldahl The Kjeldahl method was invented by a Danish chemist named Johan Kjeldahl in 1883 and was the first method to be used in the field. In order to determine the nitrogen content of organic and inorganic substances, this method was developed specifically for that purpose. Currently, Kjeldahl nitrogen determinations are used […]
Centrifugation is a separation technique that uses a centrifugal force to separate two liquid mixes. The denser component of the mixture flows away from the shaft in this operation, while the lighter component moves towards it. Since churning is excessively quick and less time-consuming, this method is most commonly utilised. The container carrying the mixture
When we say “extraction,” we are referring to the transference of a compound(s) from a solid or liquid into another solvent or phase. In the process of steeping a tea bag in hot water, those compounds responsible for the flavour and colour of the tea are released from its grounds and into the liquid. Decaffeinated
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Chemistry, Class 11, NEET, Purification and qualitative analysis of organic compounds, Some Basic Principles and TechniquesHuman evolution, the method with the aid of using which people evolved on Earth from now-extinct primates. Viewed zoologically, we human beings are Homo sapiens, a culture-bearing upright-taking walks species that live at the ground and possibly first developed in Africa approximately 315,000 years ago. We at the moment are the most effective dwelling participants
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Chemistry, Class 11, IUPAC nomenclature, NEET, Some Basic Principles and Techniquesp-block elements are those that have had their p-orbital slowly but steadily filled by electrons over time, as shown in the periodic table. The element Helium has an electronic configuration of 1s2, but it is a member of the p-block of elements. The p-block is made up of six groups, numbered from group-13 to group-18.
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Chemistry, Class 11, Group 14: Carbon family, NEET, The p-Block ElementsThe p- block elements are usually shiny and also a good conductor of electricity as well as heat. The p-block elements tend to lose an electron. We also find some amazing properties of elements in a P-block element for example gallium. Gallium is a metal that can melt even in the palm of your hand.
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Chemistry, Class 11, Group 14: Carbon family, NEET, The p-Block ElementsThe elements in Groups 1 and 2 of the modern periodic table are referred to as S-block elements because they are grouped together. In the s-subshell of a s block element, there are two types of s block elements that can exist: elements with a single electron (s1) and elements with two electrons. Elements in
P block elements are shiny and frequently a decent conductor of electricity and warmth as they need an inclination to lose an electron. We may notice some superb properties of elements during a P-block component like metal. Semiconducting material is additionally one in every of the foremost necessary metalloids of the p-block group because it
On the Periodic Table, the members of this block are located on the far left hand side of the table. The elements with the ns1 configuration are referred to as alkali metals (Group IA elements), whereas the elements with the ns2 configuration are referred to as alkaline earth metals (Group IIA elements). The elements of
Boron is widely used as a wonder element with exceptional physical properties in a wide range of industries and applications, from aerospace to construction, automotive, and healthcare. Its value as a critical mineral in advanced energy solutions, food security, and decarbonization is becoming more widely acknowledged. Do you have a firm grasp on Boron? Boron
