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Q. What are Native Minerals?
These minerals contain the metal in free or elemental state, e.g., copper, silver, gold, platinum and iron. The metals are usually found mixed with clay, sand, etc. Sometimes lumps of almost pure metals are also found. These lumps are called nuggets. Native iron is of meteorite origin and its occurrence is rare. Deposits of native iron are found in Greenland.
Q. Explain Lead chamber process? Lead chamber process, is the older of the two processes. In this process SO 2 , is produced by burning S or roasting pyrites. S + O 2 -
Q. Describe about groups or families in periodic table? Every element may be represented by a one or two letter symbol. In the middle of nineteenth century a Russian chemist Dm
Calculate ionisation potential of the electron in the first exited state of singly ionised Helium atom is given by ionisation of Hydrogen atom to be 13.6 eV. Ans: According to
Hybridisation in Organic Compounds (1) The method of mixing atomic orbitals to form a set of new equivalent orbitals is known as hybridisation. There are three kinds of hybridi
Action of grignard reagents on carbonyl compounds with examples
occurrence of p block elements
difference between atom,element,compound,molecule,ion,charge
standard estimation protocol
(a) Define the so-called 'colligative' properties, and write brief notes about each of them. (b) A system comprises two liquid components. State whether the system would be lik
Simple proteins Simple proteins are made up of chains of amino acid units just joined by peptide linkages. These types of proteins on hydrolysis yield just only mixture of amin
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