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The boron trihalides are highly volatile; BF 3 (b. p., 173 K) and BCI 3 , (b. p., 260.5 K are gases, BBr 3 a volatile liquid (b. p., 319 K) and Bl 3 a low melting solid (m. p.,
Which of the following hydrides are ionic: (1) CaH 2 (2) BaH 2 (3) SrH 2 (4) BeH 2
Structure of benzene - Kekule structure It has a special structure, which is even though unsaturated even then it usually behave as a saturated compound. (i) Kekule's struct
what is the use of d-block elements
(a) Describe how you would carry out a series of experiments to determine the molar conductivities (Λ m ) of an electrolyte at various concentrations, starting with the measurement
how we synthesis picric acid why it required 1 hour for the reaction with HNO3,H2SO4 and show the mechanism of picric acid and uses of picric acid. and what is the role of HNO3,H2S
SULFUR, SELENIUM AND TELLURIUM The elements known commonly as the chalcogens are in the same group (16) as oxygen. They form some compounds same to those of oxygen, but show m
Explain the Two solids and a solvent - Phase Diagram? The phase diagram in Figure on the next page is for a ternary system of water and two salts with an ion in common. There i
Q. What is Pairing energy explain? Pairing energy, P, depends mainly on the electronic distribution of the central metal ion and its value can be obtained from the atomic spect
How to prepare my seminar paper ?
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