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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.
environmental pollution caused by nitrogen
LITHIUM AND BERYLLIUM MARKEDLY DIFFERENT FROM OTHER MEMBERS OF THEIR RESPECTIVE GROUP?.
reaction of cycloalkane??
Which of the following two compounds would you wait for to have a greater dipole moment? Support your reply by writing the corresponding (plausible) resonance structures.
Q. Isolation and purification of metals? metals as a group of elements have acquired a unique importance in the modern world. However, nature' does not generally offer us metal
limitations of valence bond theory
Q. Describe about Dioxides? These are generally obtained by heating the element in air. The dioxides of Se and Te can also be prepared by treating the element with conc. HNO, f
What are the physical propeties of S block ?
name any 10 chemical compound used at homewith their molecular formula
Covalent Bond Purely electrostatic attractions between ions are nondirectional, but with increasing covalent character the directional properties of valence orbitals become more
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