Preparation of nitrogen

Preparation of nitrogen Nitrogen is found in both free and combined states. It occupies 78.07% by volume. Nitrogen can be prepared: By heating copper in air: Firstly, air is passed through lime water and then concentrated sulphuric acid to make the air free from carbon dioxide and moistures respectively. The air contains only nitrogen and … Read more

09.05.18 APSC (Assam) Current Affairs

ASSAM   Adopt A Heritage Scheme: Assam sees protests over Kaziranga National Park, Ahom-era monuments   Centre’s decision to engage corporate houses for maintenance of tourism infrastructure in Assam’s Kaziranga National Park (KNP) and Ahom-era monuments in Sivasagar district has angered many organisations, triggering protest in different parts of the state on Wednesday. This comes at a time when … Read more

Food safety and Microbial standards, Food quality standards

Food safety and Microbial standards, Food quality standards Food safety-Indicators of food microbial Quality and safety-Coliforms, Enterococci, Bifidobacteria, Coliphages/Enteroviruses, predictive Microbiology/ Microbial modeling Microbial Standards of Processed and preserved Foods The Center for disease control (CDC) investigates each documented outbreak of food borne disease and attempts to determine not only the specific microorganisms and foods … Read more

14.02.18 APSC (Assam) Current Affairs

ASSAM Railways’ initiative to enhance safety   As part of its initiative to enhance safety, the Railways has developed a web-based platform called Safety Information Management System (SIMS).“All-out efforts are being undertaken to ensure safety in rail operation as per directive of the Railway Minister. As part of the initiative the Ministry of Railways has … Read more

31.01.18 APSC (Assam) Current Affairs

ASSAM Investors Summit initiative hailed   The Assam Real Estate and Infrastructure Developers’ Association (AREIDA) has welcomed the initiative of the Government of Assam in organising the Global Investors’ Summit showcasing ‘advantage of Assam’. AREIDA president PK Sharma said every state in the country and every country in the world is in intense competition with … Read more

23.05.18 APSC (Assam) Current Affairs

ASSAM   Foundations of 19 cancer hospitals in Assam will be laid on June 17: Himanta Biswa Sarma   Assam health minister Himanta Biswa Sarma said the foundations stone of 19 cancer hospitals will be laid in the state in presence of Tata Trust chairman Ratan Tata on June 17. Sarma told reporters here on Monday that the 19 cancer hospitals in … Read more

07.04.18 APSC (Assam) Current Affairs

ASSAM   ·        Assam’s Spring Festival begins in Manas National Park ð  The two-day Assam Spring Festival began at the Manas National Park where visitors will get to experience the state’s local food, music, handloom and handicrafts. ð  The National park which is also a tiger and rhino reserve covers five districts of Assam — … Read more

Corossion of metals

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