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Q. Reactions with metals?
Ans.
Halogens commonly undergo reactions with metals. Halogens react with the alkali metal family, Group IA in the periodic table. For example, chlorine reacts with potassium hydroxide to form potassium chloride and potassium hypochlorite.
Cl2 + 2KOH -> KCl + KOCl + H2O
Many metals burn in chlorine to form metal chlorides. When sodium burns with chlorine, a yellow flame and white smoke are observed:
2Na(s) + Cl2(g) -> 2NaCl(s)
Q. Explain about Bohr atomic model? Bohr anticipated that hydrogen's single electron could orbit at only specific distances from the atom's nucleus. When the electron is in the
The ph of an aqueous solution of Ba(OH)2 is 10 if the ksp of Ba(OH)2 is 1*10^-9 then the concentration of Ba+2 ions in the aqueous solution is Ans) [OH(-)] = 10^(-4) 2.
Lassaigne method This is employed to detect halogen, nitrogen and sulphur. Organic compounds are fused along with dry sodium in a fusion-tube and fused mass after extraction wi
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