Malleability and ductility of metals can be accounted due to
a. The capacity of layers of metal ions to slide over the other
b. The interaction of electrons with metal ions in the other
c. The presence of electrostatic force
d. The crysyalline structure in metal
Ans.a
Explanation : When a metal is beaten it does not break but is convert into sheet. It is said to possess the property of melleability. Due to ductile nature, metals can be drawn into wires. These two properties of metals can be accounted due to the capacity of layers of metal ions to slide over the other.
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dm-3 sucrose solution at 20 ° C (molar gas constant, R = 8.314 JK -1 mol -1 ; 1 dm-3 = 0.001 m3 ) a. 4870 Pa b. 4.87 Pa c. 0.00487 Pa d. 0.33 Pa Ans. a (17)
