Problem 11
The outermost configuration of the most electronegative elements is (a) \(\mathrm{ns}^{2} \mathrm{np}^{5}\) (b) \(\mathrm{ns}^{2} \mathrm{np}^{6}\) (c) \(\mathrm{ns}^{2} \mathrm{np}^{4}\) (d) \(\mathrm{ns}^{2} \mathrm{np}^{3}\)
Problem 12
Which of the following is the atomic number of a metal? (a) 32 (b) 34 (c) 36 (d) 38
Problem 13
Which of the following has maximum ionization potential? (a) \(\mathrm{Al}\) (b) \(\mathrm{P}\) (c) Si (d) \(\mathrm{Mg}\)
Problem 14
The first ionization potential will be maximum for: (a) Uranium (b) Iron (c) Hydrogen (d) Lithium
Problem 15
The most acidic oxide is: (a) \(\mathrm{MgO}\) (b) \(\mathrm{CaO}\) (c) \(\mathrm{Na}_{2} \mathrm{O}\) (d) \(\mathrm{Al}_{2} \mathrm{O}_{3}\)
Problem 16
The atomic radius decreases in a period due to (a) Increase in nuclear attraction (b) Decrease in nuclear attraction (c) Increase in number of electrons (d) Decrease in number of electrons
Problem 17
The correct order of decreasing first ionization potential is (a) \(\mathrm{Ca}>\mathrm{K}>\mathrm{Rb}>\mathrm{Cs}\) (b) \(\mathrm{Cs}>\mathrm{Rb}>\mathrm{K}>\mathrm{Ca}\) (c) \(\mathrm{Ca}>\mathrm{Cs}>\mathrm{Rb}>\mathrm{K}\) (d) \(\mathrm{K}>\mathrm{Rb}>\mathrm{Cs}>\mathrm{Ca}\)
Problem 18
The electron affinity of \(\mathrm{Be}\) is similar to (a) He (b) B (c) \(\mathrm{Li}\) (d) \(\mathrm{Na}\)
Problem 19
Which one of the following represents the correct order of electronegativity? (a) \(\mathrm{P}>\mathrm{O}>\mathrm{N}\) (b) \(\mathrm{N}>\mathrm{P}>\mathrm{O}\) (c) \(\mathrm{O}>\mathrm{N}>\mathrm{P}\) (d) \(\mathrm{N}>\mathrm{O}>\mathrm{P}\)
Problem 20
The transition metal with least atomic number is: (a) \(\mathrm{Os}\) (b) \(\mathrm{Zr}\) (c) \(\mathrm{Pt}\) (d) \(\mathrm{Ru}\)
