What is the co-ordination number of cation and anion in Caesium chloride (bcc arrangement) ?
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The formation of sodium chloride from gaseous sodium and gaseous chloride is a redox process. Justify.
Na atom get oxidize and Cl is reduced
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Write the chemical formula of the following: (a) Magnesium chloride (b) Calcium oxide (c) Copper nitrate (d) Aluminium chloride (e) Calcium carbonate
(a) Magnesium chloride →MgCl2 (b) Calcium oxide →CaO (c) Copper nitrate →Cu(NO3)2 (d) Aluminium chloride →AlCl3 (e) Calcium carbonate →CaCO3
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Give the definition of a cation and an anion.
Cation- It is the positively charged ion, e.g., Na+ which is attracted towards cathode (negative electrode) in an electric field. Anion – It is the negatively charged ion, e.g., Cl- which...
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You are provided with a mixture containing sand, iron filings, ammonium chloride and sodium chloride.
Hint– Step-1 Separate iron filings with the help of a magnet Step-2 Sublimation of the remaining mixture separates ammonium chloride Step-3 Add water to the remaining mixture, stir and filter Step-4 The filtrate can...
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What is the coordination number of atoms in : (a) fcc structure (b) bcc structur?
(a) 12 (b) 8
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What are the co-ordination numbers of octahedral voids and tetrahedral voids ?
6 and 4 respectively.
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Explain how vacancies are introduced in an ionic solid when a cation of higher valence is added as an impurity in it.
When a cation of higher valence is added to an ionic solid as an impurity to it, the cation of higher valence replaces more than one cation of lower valence...
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Phosgene is a common name for : (a) Phosphoryl chloride (b) Carbonyl chloride
The correct answer is (b)
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Na and Mg crystallize in bcc and fcc type crystals respectively,
(d) : bcc - Points are at corners and one in the centre of the unit cell. Number of atoms per unit cell = 8 x 18 + 1 = 2. fcc...
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Ammonia on reaction with hypochlorite anion can form :
(d) N2H4 and NH4Cl are obtained by reaction of ammonia with hypochlorite anion.
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