Chapter 3: Problem 100
The highest oxidation state that can be exhibited by transition metal is \((1)+7\) \((2)+8\) (3) \(+6\) (4) \(+5\)
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The correct order of sccond ionisation potential of \(\mathrm{C}, \mathrm{N}, \mathrm{O}\) and \(\mathrm{F}\) is (1) \(\mathrm{C}>\mathrm{N}>\mathrm{O}>\mathrm{F}\) (2) \(\mathrm{O}>\mathrm{N}>\mathrm{F}>\mathrm{C}\) (3) \(\mathrm{O}>\mathrm{F}>\mathrm{N}>\mathrm{C}\) (4) \(\mathrm{F}>\mathrm{O}>\mathrm{N}>\mathrm{C}\)
Among the following elements the configuration having highest ionisation energy is (1) \(|\mathrm{Ne}| 3 \mathrm{~s}^{2} 3 \mathrm{p}^{\prime}\) (2) \(|\mathrm{Ne}| 3 \mathrm{~s}^{2} 3 \mathrm{p}^{3}\) (3) \(|\mathrm{Ne}| 3 \mathrm{~s}^{2} 3 \mathrm{p}^{2}\) (4) \(|\mathrm{Ar}| 3 \mathrm{~d}^{10} 4 \mathrm{~s}^{2} 4 \mathrm{p}^{3}\)
Which of the following statement is false? (1) An clement having clectronic configuration \(1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 4 s^{1}\) forms basic oxide. (2) Chloride of an clement \(\Lambda\) gave a neutral solution in water. In the periodic table the clement \(\Lambda\) belongs to III group.
Which statement is false? (1) Elements of VA group are transition elements. (2) Elements of I and II groups are normal elements. (3) Elements of zero group are monoatomic gases. (4) A1l transition elements are metals.
In the periodic table the metallic character with increase in atomic number (1) decreases in a period and increases in a group (2) increases in a period and decreases in a group (3) increases both in a period and in the group (4) decreases both in a period and in the group
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