11.05.18 Uttarakhand (UKPCS) Current Affairs

UTTARAKHAND   Restrictions near eco zone eased     The government has eased infrastructure-development restrictions in the Bhagirathi river eco-sensitive zone, a 100-kilometre stretch between Gaumukh and Uttarkashi in Uttarakhand.   The notification makes way for development projects for the marquee Char Dham project. In 2012, the government had severely restricted development works in an … Read more 11.05.18 Uttarakhand (UKPCS) Current Affairs

15.05.18 Uttarakhand (UKPCS) Current Affairs

UTTARAKHAND   Storm warning: Officials told to be prepared   With the weather department warning of rain and hailstorm in parts of Uttarakhand, the police on Monday asked all its district heads to stay alert and  prepared.   State Disaster Response Force (SDRF), disaster response teams and water police personnel should be ready with necessary … Read more 15.05.18 Uttarakhand (UKPCS) Current Affairs

Preparation of Oxygen

Preparation of Oxygen Oxygen is prepared in lab generally in two ways either by the application of heat or no application of heat. Using heat: Oxygen in lab is prepared by heating the mixture of powdered potassium chlorate and manganese dioxide in the ratio 4:1 in a hard glass test tube. The oxygen gas is … Read more Preparation of Oxygen

The Rate of a Chemical Reaction

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

Metallurgy of Copper

  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

Laboratory method of preparation acetic acid

Laboratory method of preparation acetic acid Ethanoic Acid (Acetic acid – CH COOH) Ethanoic acid is the second member of the homologous series of carboxylic acids. In other words, vinegar contains about 5 to 8% acetic acid. We will now describe two methods for the manufacture of ethanoic acid. In the first method, ethanoic acid … Read more Laboratory method of preparation acetic acid

The Rate of a Chemical Reaction

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

Preparation of hydrogen

Preparation of hydrogen Hydrogen Hydrogen is the most abundant element in the universe. The sun and other stars are composed largely of hydrogen. Astronomers estimate that 90% of the atoms in the universe are hydrogen atoms. Hydrogen is a component of more compounds than any other element. Water is the most abundant compound of hydrogen … Read more Preparation of hydrogen

17.02.18 Uttarakhand (UKPCS) Current Affairs

UTTARAKHAND   Uttarakhand’s startup policy to help 500 entrepreneurial talents   With the motive of enabling people to give jobs rather than seeking jobs, the Trivendra Singh Rawat led cabinet in a major move gave its nod to the Uttarakhand StartUp Policy . To make it a focus drive campaign, the state government has decided to concentrate on the … Read more 17.02.18 Uttarakhand (UKPCS) Current Affairs

laboratory method of preparing alcohol

Laboratory method of preparing alcohol Hydrolysis of Alkyl Halides This is a nucleophilic  substitution reaction. R-X + KOHaq → R-OH The method is not satisfactory as olefins are also formed as by-products. However better yields is obtained by using moist Ag2O or aqueous K2CO3. Tertiary butyl halides mainly gives alkene due to dehydrohalogenation. Hydration of Alkenes This … Read more laboratory method of preparing alcohol