Statement 1: Tungsten has very high melting pointStatement 2: Tungsten is a covalent compound
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a
Both statements 1 and 2 are correct
b
Statement 1 is correct statement 2 is incorrect
c
Statement 1 is incorrect statement 2 is correct
d
Both statements 1 and 2 are incorrect
answer is B.
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Detailed Solution
Statement 1: True, The maxima at about the middle of each series indicate that one unpaired electron per d orbital is particularly favourable of strong interatomic interaction. ln general, greater the number of valence electrons, stronger is the resultant bonding. Cr, Mo and W have maximum number of unpaired electrons and therefore, these are very hard metals and have maximum enthalpies of atomization. So tungsten has very high melting point.Statement 2: False, It is not a covalent compound but is a metal, i.e., an element.