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why pcl3 is less polar than sicl4
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Melting and freezing points: When a pure solid substance is heated through its melting point (melting temperature), the solid changes to a liquid. At the melting point equilibr
Q. Illustrate Born-Haber cycle? Boron is always covalent and does not form,B 3+ ions, because' the energy required to remove three electrons is very high. Many simple compo
What is the structure of a DNA molecule? Ans) The DNA molecule having of two complementary strands oriented in an anti-parallel fashion. Every strand is composed of nucleotides.
50ml of 0.1M NH 4 OH ,25ml NH 4 Cl weere used to make a buffer . what is the PH is if Pk b is 4.8? Solution) The given buffer is a base buffer [NH4OH] =[(50*0.1)/75] [NH4Cl] =[(
Q. Illustrate Properties of Protons and Neutrons? Ans. We now know that following fundamental properties of protons and neutrons: 1. The proton has a charge of +1, which
Experimental evidence for the existence of the atomic nucleus comes from: (1) Millikan's oil drop experiment (2) Atomic emission spectroscopy (3) The magnetic bending of
A baseball weighs 5.19oz oz . What is the kinetic energy in joules of this baseball when it is thrown by a major-league pitcher at 93.0mph mph ?
Why phenol can also be prepared from chlorobenzene(Dow''s process)
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