1. A)Name the property due to which metals can be drawn into wires.(1) B) which non metal does not conduct heat and electricity?(1) 2. What happens when magnesium ribbon is heated in presence of air? write reaction for this. (2) 3.How do metals and nonmetals react with water explain with equations? (3) 4. Can copper metal displace Zinc metal from its solution or not? state the reason.(3)
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Explanation:
1. a)The Property is termed as 'Ductility'.
b) Graphite.
2. When the magnesium metal burns it reacts with oxygen found in the air to form Magnesium Oxide. 2Mg + O2 → 2MgO.
3. Metals react with water and produce a metal oxide and hydrogen gas. But few metals react with hot water to form Magnesium Hydroxide and Hydrogen. But Non-Metals do not react with water (steam) to evolve hydrogen gas.
4.No, copper cannot displace zinc from its salt solution Because it is less reactive than Zinc.
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