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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.,
Number of unpaired electrons in inert gas is: (1) Zero (2) 8 (3) 4 (4) 18 Ans: Zero
Cracking - Artificial process for manufacture of Petrol It is a method in which high boiling fractions containing higher hydrocarbons are heated strongly to decompose them into
Can we vary the pressure while phases remain in equilibrium? Consider a system containing only NH 4 Cl(s), NH 3 (g), and HCl(g). Assume that the equilibrium NH 4 Cl(s) ↔ NH
Explain the statement "Water has bent geometry" Water has bent geometry; that is, the H-O-H bond angle is approximately tetrahedral. Repulsion among the lone pairs and the bond
What is diagonal relashionship in periodic table
Pauli's exclusion principle states that : (1) Nucleus of an atom contains no negative charge (2) Electrons move in circular orbits around the nucleus (3) Electrons oc
a) Calculate the energy required to heat 1kg of CO 2 from 400 o C to 600 o C at a constant pressure of 1atm using:- i) The mean heat capacity data given below ii) The heat c
Principal quantum number of an atom represents : (1) Size of the orbital (2) Spin angular momentum (3) Orbital angular momentum (4) Space orientation of the orbital
explain acidic character of acetalin
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