Classification of Elements and Periodicity in Properties questions
826 published questions with worked solutions.
- Which of the following represents the correct order of increasing first ionization enthalpy for Ca, Ba, S, Se and Ar ?
- Which of the following represents the correct trend for the mentioned property? A. F > P > S > B − First Ionization Energy B. Cl...
- Given below are two statements: Statement-I: The correct order in terms of atomic/ionic radii is Al > Mg > Mg^ 2+ > Al^ 3+ ....
- A 'p'-block element (E) and hydrogen form a binary cation (EH_x)^+, while EH_3 on treatment with K_2HgI_4 in alkaline medium...
- Given below are two statements : Statement-I: The first ionization enthalpy of Cr is lower than that of Mn. Statement-II : The...
- Given below are two statements : Statement-I : C<O<N<F is the correct order in terms of first ionization enthalpy values....
- The correct trend in the first ionization enthalpies of the elements in the 3rd period of periodic table is:
- The correct statements from the following are : (A) Ionic radii of trivalent cations of group 13 elements decreases down the...
- Given below are two statements : Statement I: The second ionisation enthalpy of Na is larger than the corresponding ionisation...
- Given below are two statements : Statement I: K>Mg>Al>B is the correct order in terms of metallic character. Statement II :...
- The correct order of C, N, O and F in terms of second ionisation potential is
- Consider the elements N, P, O, S, Cl and F. The number of valence electrons present in the elements with most and least metallic...
- Which of the following electronegativity order is incorrect?
- Match List-I with List-II List-I: (A) Al3+ < Mg2+ < Na+ < F– (B) B < C < O < N (C) B < Al < Mg < K (D) Si < P < S < Cl List-II:...
- Given below are two statements : Statement (I) : An element in the extreme left of the periodic table forms acidic oxides....
- The element that does not belong to the same period of the remaining elements (modern periodic table) is:
- Given below are two statements : Statement (I) : The first ionization energy of Pb is greater than that of Sn Statement(II) : The...
- The successive 5 ionisation energies of an element are 800, 2427, 3658, 25024 and 32824 kJ/mol, respectively. By using the above...
- The incorrect decreasing order of atomic radii is :
- Consider the following elements In, Tl, Al, Pb, Sn and Ge. The most stable oxidation states of elements with highest and lowest...
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