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Which of the following is not true in Rutherford's nuclear model of atom:
(1) Protons and neutrons are present inside nucleus
(2) Volume of nucleus is very small as compared to volume of atom
(3) The number of protons and neutrons are always equal
(4) The number of electrons and protons are always equal
Ans: The number of protons and neutrons are always equal
In a heteronuclear molecule a bond is build between different atoms, and the most important difference from the homonuclear case is that molecular orbitals (MOs) are no longer sh
Delocalisation of electrons in conjugated system is called resonance. For example there is delocalisation of electrons in benzene ,hence we write kekule structure for benzen.
Which one is not the correct relation in the following: (1) h= E/ v (2) E= mc 2 (3) Δ x × p = h/ 4 Π (d) γ
Ethelene+diaminotetraacetate---->1,4- diaminobutane from ethylene CH 2 =CH 2 +EDTA---->NH 2 -CH 2 -CH 2 -CH 2 -CH 2 -NH 2
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Ortho, meta and para 1. Ortho (or 1, 2-) : if the two substituents are on the adjacent carbon atoms, the compound is said to be ortho (or 1, 2-). 2. Meta (or 1, 3-) : if the
Physical properties of nitroalkanes
Hofmann Method - Determination of Molecular Mass The method is applied to those substances that are not stable at their boiling points, but that may be volatilised with no deco
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