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Classification of Elements and Periodicity in Properties
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Classification of Elements and Periodicity in Properties
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25 Questions

1. Which one of the following ions will be thesmallest in size? [1996]
2. Identify the wrong statement in thefollowing: [2012]
3. Na+ - Mg++ - Al3+ and Si4+ are isoelectronicTheorder of their ionic size is [1993]
4. Which of the following represents thecorrect order of increasing electron gainenthalpy with negative sign for the elements O - S - Fand Cl? [2010]
5. Of the given electronic configurations forthe elements - which electronic configurationindicates that there will be abnormally highdifference in the second and third ionizationenergy for the element? [1999]
6. Identify the correct order of the size of thefollowing: [2007]
7. The element - with atomic number 118 - willbe [1995]
8. What is the value of electron gain enthalpyof Na+ if IE1 of Na = 5.1 eV? [2011]
9. Which of the following sets has strongesttendency to form anions? [1993]
10. Correct order of first IP among followingelements Be - B - C - N - Ois [2001][1995]
11. One of the characteristic properties of nonmetals is that they [1993]
12. The stability of + 1 oxidation state increasesin the sequence: [2009]
13. An atom has electronic configuration 1s22 s22p63 s23 p63 d34 s2 - you will place it in whichgroup? [2002]
14. Pauling-™selectronegativityvalues6One would expect proton to have very large[1993]
15. Which electronic configuration of an elementhas abnormally high difference between secondand third ionization energy? [1993]
16. Which of the following electronicconfiguration an atom has the lowest ionisationenthalpy? [2007]
17. Ionic radii are [2004]24
18. Which of the following does not representthe correct order of the properties indicated[1997]
19. Among K - Ca - Fe and Zn the element whichcan form more than one binary compound withchlorine is [2004]
20. forelements are useful in predicting [1989]
21. In the periodic table - with the increase inatomic number - the metallic character of anelement [1989]
22. Which one of the following oxides isexpected to exhibit paramagnetic behaviour?[2005]
23. Which one of the following arrangementsrepresents the correct order of least negative tomost negative electron gain enthalpy for C - Ca - Al - Fand O? [2013]
24. In the periodic table from left to right in aperiod - the atomic volume [1993]
25. Which of the following order is wrong?[2002]