Chapter 4: Problem 37
Which of the following elements has maximum electronegativity? (a) \(\overline{\mathrm{P}}\) (b) \(\mathrm{S}\) (c) \(\mathrm{Al}\) (d) \(\mathrm{Si}\)
Chapter 4: Problem 37
Which of the following elements has maximum electronegativity? (a) \(\overline{\mathrm{P}}\) (b) \(\mathrm{S}\) (c) \(\mathrm{Al}\) (d) \(\mathrm{Si}\)
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Get started for freeState whether the following statements are true or false. Among the isoelectronic ions \(\mathrm{Na}^{+}, \mathrm{Mg}^{2+}\) and \(\mathrm{Al}^{3+}\), \(\mathrm{Na}^{+}\) ion have the largest size.
Which among the following is not an anomalous pair in Mendeleeff 's periodic table? (a) \(\mathrm{Co}, \mathrm{Ni}\) (b) \(\mathrm{Te}, \mathrm{I}\) (c) \(\mathrm{Ar}, \mathrm{K}\) (d) \(\mathrm{Sc}, \mathrm{Ga}\)
Which of the following elements acts as the best reducing agent? (a) \(\mathrm{Na}\) (b) \(\mathrm{Cl}\) (c) \(\mathrm{Mg}\) (d) \(\mathrm{F}\)
The general electronic configuration of representative elements is (a) \(\mathrm{ns}^{1-2} \mathrm{np}^{1-6}\) (b) \(\mathrm{ns}^{1-2} \mathrm{np}^{1-5}\) (c) \(\mathrm{ns}^{1-2}(\mathrm{n}-1) \mathrm{p}^{1-5}\) (d) \(\mathrm{ns}^{1-2}(\mathrm{n}-1) \mathrm{p}^{1-6}\)
If the consecutive ionization energies of an element A are \(496,4564,6918,9542 \mathrm{~kJ} / \mathrm{mole}\) respectively, the formula of the oxide formed by \(\mathrm{A}\) is (a) \(\mathrm{A}_{2} \mathrm{O}_{3}\) (b) \(\mathrm{AO}\) (c) \(\mathrm{AO}_{2}\) (d) \(\mathrm{A}_{2} \mathrm{O}\)
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