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Q. Explain Dalton’s atomic theory?
The atomic theory In 1808 John Dalton projected a theory to explain the laws of conservation of matter definite proportions and multiple proportions. Dalton's atomic theory base on experimental results held that matter consists of atoms that all atoms of an element are alike and that atoms of one element differ from atoms of other elements. Further the theory proposed that atoms were indestructible and only were rearranged during chemical reactions.
How to write conclusion for this topic hydrides
Indicate the nature of bonding in diamond: (1) Covalent (2) Ionic (3) Coordinate (4) Hydrogen Ans: Covalent
Sodium alkyl sulphates - Oils and Fats These types of detergents are sodium salts of sulphuric acid esters of long chain aliphatic alcohols consisting of generally 10 to 15 car
Saturated and unsaturated hydrocarbons The compounds of carbon and hydrogen in which carbon atoms are linked to each other by single covalent bonds(C-C) are known as alkanes. T
Q. Describe Water and Heavy Water? Water, H 2 O, the simple hydride of oxygen is a unique compound. It has extraordinarily high melting and boiling points compared to the other
what are the different methods for purifying the organic compounds with examples and applications on these methods in our daily lives or in industry?
which electrodeh is the best
Potassium permanganate is prepared from pyrolusite (MnO 2 ) . Pyrolusite is fused with KOH in the presence of atmospheric oxygen or an oxidising agent like potassium nitrate or po
What are ferrites? Ferrites are ceramic compounds containing trivalent metal having three valence electrons, iron and oxide of divalent element i.e. metals having two free ele
Q. Objectives of transition elements of the f-block? After studying this unit you should be able to: distinguish between transition and inner-transition elements, d
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