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Ionization energy of group: Why does Ionization energy of group IIA elements decrease from Be to Ra? A. As the atomic size increases from Be to Ra, the attraction between
Properties of Catechol 1. Catechol is a colourless crystalline solid, its melting points is 105°C. 2. Catechol is soluble in water. 3. Catechol is exaggerated on exposure
Al is used as reducing agent for the extraction of metals such as Chromium,Monganes.Explain why? Solution) Al3+ + 3 e- Al Good reducing agents like aluminum have relatively
CARBON, SILICON AND GERMANIUM With the valence electron configuration s 2 p 2 the nonmetallic group of elements 14 may form compounds with four tetrahedrally directed covalent
Physical properties of Aromatic Nitro Compounds (a) Aromatic nitro compounds are insoluble in water although soluble in organic solvents. (b) They are either pale yellow liq
Write the electron configuration for Tl why do we use F block and how do i count the subshells in that case?
how to use the heat of fusion in a equation
Ionic compounds do not have: (1) Hard and brittle nature (2) High melting and boiling point (3) Directional properties (4) Soluble in polar solvents Ans: Direction
Qualitative analysis A salt contains two parts defined as radicals. The positively charged part of a salt (cation) that has been derived from a base is known as basic radical a
Calculate the molar concentration of the solution essential to obtain the value of 10 molecules per µm2. (For this calculation we suppose that the transfer of the dye molecules fro
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