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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.,
State the Functions of oxide layer (i) To mask against diffusion or ion-implant, (ii) To passivate surface electrically and chemically. (iii) To isolate one device from a
Which type of bond is formed between similar atoms: (1) Ionic (2) Covalent (3) Coordinate (4) Metallic Ans: Covalent
please tell the observation & inference, when ammonium phosphate (NH4)3PO4 undergoes charcoal cavity test & cobalt nitrate test.....
Explain cesium fluoride Compound (2), cesium fluoride, would be most likely to exist as an ionic species, due to Cs and F come from opposite corners of the periodic table.
Uses of glycol
The difference in the mass of 100 moles of sodium atoms and sodium ions is 5.48002grams .compute the mass of an electron
what is the effect of cement refactory on wear and tear
1. For what fraction of annual CO 2 emissions from fossil fuel burning are automobiles responsible? 2. A 1000-kg car travels 1.6 × 10 4 km/yr. What is the ratio of the mass of
how to learn the periodic table
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