Ore

Ore An ore is a special type of rock that contains a large enough amount of a particular mineral (usually a metal) to make it economically practical to extract that mineral from the surrounding rock. Not all minerals are found in a large enough amount in one location to make it worth it to remove the ore … Read more Ore

Metallurgy concentration, roasting, smelting

Metallurgy concentration, roasting, smelting Roasting It is a process wherein the ore is heated either alone or with some other material in excess of air below the fusion point of the ore. Usually, this method is used for sulphide ores. In roasting, definite chemical changes take place to form oxide or chloride of the metal. … Read more Metallurgy concentration, roasting, smelting

27-28.05.18 (CGPCS) Chhattisgarh Current Affairs

CHHATTISGARH Issue of bill must on sale of goods worth rs 200   The Commercial Tax Department has made it mandatory for traders and shopkeepers to issue bills as per the rules on sale of goods worth Rs 200, under Goods and Services Tax Act (GST) 2017.   Officials informed that with an objective to … Read more 27-28.05.18 (CGPCS) Chhattisgarh Current Affairs

16.03.18 (CGPCS) Chhattisgarh Current Affairs

CHHATTISGARH Rs 448.30 cr special assistance under tss in last 4 years   The Central Government has released Rs 448.30 crore to Chhattisgarh under Special Central Assistance (SCA) to Tribal Sub Scheme (TSS) during the last four years between 2014-15 to 2017-18, officials informed.   Notably, NITI Aayog has also given ‘in principle’ approval to … Read more 16.03.18 (CGPCS) Chhattisgarh Current Affairs

Properties of polyvinyl chloride

Properties of polyvinyl chloride What is Polyvinyl Chloride (PVC), and What is it Used For? Polyvinyl Chloride (PVC) is one of the most commonly used thermoplastic polymers in the world (next to only a few more widely used plastics like PET and PP). It is a naturally white and very brittle (prior to the additions of plasticizers) plastic. PVC has been around longer … Read more Properties of polyvinyl chloride

21.12.17 Chhattisgarh (CGPCS) Current Affairs

CHHATTISGARH 42 persons died due to elephant attacks in c’garh this year:centre   A total of 42 persons have died due to elephant attacks in Chhattisgarh as on October 2017 in the current year (2017-18), the Union Ministry of Environment , Forests and Climate Change has informed. There is no elephant reserve project in the … Read more 21.12.17 Chhattisgarh (CGPCS) Current Affairs