1. a) In the formation of compound between two atoms A and B. A loses two electrons and B gains one electron.
i) What is the nature of bond between A and B?
ii) Suggest the formula of the compound between A and B
b) On similar lines explain the formation of MgCl2 molecule.
c) Common salt conducts electricity only in the molten state. Why?
d) Why is melting point of NaCl high?
2. Differentiate between metals and non- metals on the basis of following properties-ductility, malleability,
density, appearance and electrical conductivity.
3. a) What is Aqua regia? b) Write short note on reaction of metals with salt solutions.
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1. a) In the formation of compound between two atoms A and B. A loses two electrons and B gains one electron.
i) What is the nature of bond between A and B?
ii) Suggest the formula of the compound between A and B
b) On similar lines explain the formation of MgCl2 molecule.
c) Common salt conducts electricity only in the molten state. Why?
d) Why is melting point of NaCl high?
2. Differentiate between metals and non- metals on the basis of following properties-ductility, malleability,
density, appearance and electrical conductivity.
3. a) What is Aqua regia? b) Write short note on reaction of metals with salt solutions.
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