BPSC Prelims and Mains Notes, BPSC Test Series
The Rate of a Chemical Reaction The rate of a chemical reaction can be defined as the amount of the reaction which occurs in unit time. The rate of a reaction is measured by choosing certain properties of the reaction which will indicate how far the reaction has gone, and whose magnitude can be observed … Read more The Rate of a Chemical Reaction
Properties of teflon Polytetrafluoroethylene or PTFE (more commonly known as Teflon) is a particularly versatile ivory-white and opaque plastic fluoropolymer; it is made by the free-radical polymerisation of many tetrafluoroethene molecules, and is suitable for a wide range of applications in industries as diverse as aerospace, the food and drink industry, pharmaceuticals and telecoms. Produced by … Read more Properties of teflon
Properties of soaps and detergents Soap – Characteristics And Uses Soaps are excellent cleansing agents and have good biodegradability. A serious drawback which reduces their general use, is the tendency for the carboxylate ion to react with Ca+ and Mg+ ions in hard water. The result is a water insoluble salt which can be deposited on … Read more Properties of soaps and detergents
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
Metallurgy of Copper Copper Mining: The commonest ore used in the extraction of copper is Chalcopyrite (CuFeS2) also known as Copper Pyrites and other such sulfides. The percentage of copper in the actual ore is too low for direct extraction of copper to be viable. The concentration of ore is required and it is done by the Froth … Read more Metallurgy of Copper
Refining of ores Metallurgy Metallurgy Metallurgy is the process of obtaining metals from ores. It may be defined as the processes which are involved in the extraction of metals from their ores and then refining them for use are known as metallurgy. Steps of Metallurgy: Metals can be extracted from their ores by following processes: Enrichment of … Read more Refining of ores Metallurgy
Corrosion is defined as an attack on a material as a result of chemical, frequently electrochemical reaction, with the surrounding medium. According to this definition, the term corrosion can be applied to all materials, including non-metals. But in practice, the word corrosion is mainly used in conjunction with metallic materials. Why do metals corrode? Apart … Read more Corossion of metals
An introduction to economy of Bihar BIHAR ECONOMY: AN OVERVIEW The growth momentum of the Bihar’s economy, experienced in the last decade, was continued in the recent years also. Last year the Central Statistical Organisation has released a new series of GSDP, with 2011-12 as the base year for estimation of both national and state … Read more An introduction to economy of Bihar
BIHAR Bihar sees substantial rise in new voters 74 lakh new electors in the age group of 18-19 years, as per the updated data released by the election commission recently. There are a total of 7.17 lakh young voters in the same age bracket. Overall voters in the state now stands at 6.98 … Read more 11.01.18 Bihar (BPSC) Daily Current Affairs
Q1. Under Bihar Shatabdi Unorganised Sector Workers and Artisans Social Security Scheme 2011, Bihar State Labour Welfare Society has been formed with the objective _______. to provide social security to the Organized workers and artisans of the state to provide social security to the unorganized workers and non- artisans of the state to provide social … Read more Bihar Economy-Sample Questions- BPSC Test Series