Alloy

Alloy You might see the word alloy described as a “mixture of metals”, but that’s a little bit misleading because some alloys contain only one metal and it’s mixed in with other substances that are nonmetals (cast iron, for example, is an alloy made of just one metal, iron, mixed with one nonmetal, carbon). The … Read more

Water Resources : Availability

  Water is a prime natural resource, a basic human need and a precious national asset. Planning, development and management of water resources need to be governed by national perspectives. India accounts for about 2.45 per cent of world’s surface area, 4 per cent of the world’s water resources and about 16 per cent of … Read more

The doctrine of the separation of powers

The doctrine of the separation of powers finds its roots in the ancient world, where the concepts of governmental functions, and the theories of mixed and balanced government, were evolved. These were essential elements in the development of the doctrine of the separation of powers. Their transmission through medieval writings, to provide the basis of … 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

27.04.18 (CGPCS) Chhattisgarh Current Affairs

CHHATTISGARH Chhattisgarh has made tremendous progress in health, infra: CM Raman Singh   Chhattisgarh has made tremendous progress in the areas of health and road-rail connectivity, Chief Minister Raman Singh.   Singh was responding to Niti Aayog CEO Amitabh Kant’s recent remark that states like Bihar, Uttar Pradesh, Chhattisgarh, Madhya Pradesh and Rajasthan are keeping … Read more

Non Metals

Non Metals As far as elements are concerned, a nonmetal is simply an element that does not display the properties of a metal. It is not defined by what it is, but by what it is not. It doesn’t look metallic, can’t be drawn into a wire or pounded into shape or bent, doesn’t conduct … Read more

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