BEST QUESTION PREACTICE ON PERIODIC PROPERTIES TOTALLY BASED ON NCERT

YT CRASH COURSE DAY -07
PERIODIC TABLE PYQ’s

1. Which one of the following arrangements represents the correct order of electron gain enthalpy (with negative
sign) of the given atomic species ? [AIPMT-2005]

(1) Cl < F < S < O (2) O < S < F < Cl (3) S < O < Cl < F (4) F < Cl < O < S




L
2. Four successive members of the first row transition elements are listed below with their atomic numbers. Which
one of them is expected to have the highest third ionisation enthalpy ?




A
[AIPMT-2005]

(1) Vanadium (Z = 23) (2) Chromium (Z = 24)




W
(3) Iron (Z = 26) (4) Manganese (Z = 25)




RN
3. The correct order regarding the electronegativity of hybrid orbitals of carbon is : [AIPMT-2006]

(1) sp < sp2 > sp3 (2) sp < sp2 < sp3 (3) sp > sp2 < sp3 (4) sp > sp2 > sp3
A
4. Identify the correct order of the size of the following [AIPMT-2007]
K
(1) Ca2+ < K+ < Ar < S2– < Cl– (2) Ca2+ < K+ < Ar < Cl– < S2–

(3) Ar < Ca2+ < K+ < Cl– < S2– (4) Ca2+ < Ar < K+ < Cl– < S2–
A
SH



5. With which of the following electronic configuration an atom has the lowest ionisation enthalpy ?

[AIPMT-2007]
N




(1) 1s2, 2s2 2p5 (2) 1s2, 2s2 2p3 (3) 1s2, 2s2 2p5 3s1 (4) 1s2, 2s2 2p6
A




6. The correct order of decreasing second ionisation enthalpy of Ti(22), V(23), Cr(24) and Mn(25) is :
K




(1) Cr > Mn > V > Ti (2) V > Mn > Cr > Ti (3) Mn > Cr > Ti > V (4) Ti > V > Cr > Mn
A




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7. Amongst the elements with following electronic configurations, which one may have the highest ionisation energy
? [AIPMT-2009]

(1) [Ne] 3s2 3p3 (2) [Ne] 3s2 3p2 (3) [Ar] 3d10, 4s2 4p3 (4) [Ne] 3s2 3p1



8. Among the elements Ca, Mg, P and Cl, the order of increasing atomic radii is : [AIPMT-2010]




L
(1) Mg < Ca < Cl < P (2) Cl < P < Mg < Ca




A
(3) P < Cl < Ca < Mg (4) Ca < Mg < P < Cl




W
9. Among the following which one has the highest cation to anion size ratio? [AIPMT-2010]




RN
(1) CsI (2) CsF (3) LiF (4) NaF



10. Which of the following ions has electronic configuration [Ar]3d6 ? [AIPMT-2010]
A
(1) Ni3+ (2) Mn3+ (3) Fe3+ (4) Co3+
K
11. Which of the following pairs has the same size ? [AIPMT-2010]
A

(1) Fe2+, Ni2+ (2) Zr4+, Ti4+ (3) Zr4+, Hƒ4+ (4) Zn4+, Hƒ4+
SH



12. The correct order of the decreasing ionic radii among the following is electronic species are :

[AIPMT-2010]
N




(1) Ca2+ > K+ > S2– > Cl– (2) Cl– > S2– > Ca2+ > K+

(3) S2– > Cl– > K+ > Ca2+ (4) K+ > Ca2+ > Cl– > S2–
A




13. Which of the following represents the correct order of increasing electron gain enthalpy with negative sign for the
K




elements O, S, F and Cl ? [AIPMT-2010]

(1) Cl < F < O < S(2) O < S < F < Cl(3) F < S < O < Cl(4) S < O < Cl < F
A