Q.1
Which of the following set includes the elements which were named in honor of certain countries?
  • a) In, Ge, Po
  • b) Ge, Bk, Cr
  • c) Ru, Am, Ge
  • d) All are correct
Q.2
chloride ion and potassium ion are isoelectronic. Then ..[ KCET 2002]
  • a) Their size are same
  • b) Cl- ion is bigger than K+ ion
  • c) K+ ion is relatively bigger
  • d) Their size depend on other cation and anion
Q.3
Which of the following is most electropositive element? [ J and K CEET 2003]
  • a) Al
  • b) Mg
  • c) P
  • d) S
Q.4
In any period, the valency of an element with respect to oxygen. ..[ Kerala MEE 2003]
  • a) Increases one by one from IA to VII A
  • b) Decrease one by one from IA to VIIA
  • c) Decreases one by one from IA to IVA and then increases from VA to VIIA one by one
  • d) Increases one by one from IA to IVA and then decreases from VA to VIIA one by one
Q.5
Name the element in the periodic table forming maximum number of compounds .... [ Haryana CEET 2003]
  • a) C
  • b) H
  • c) O
  • d) F
Q.6
In the periodic table, metallic character of the elements shows one of the following trend. [ Kerala CEE 2003]
  • a) Decreases down the group and increases across the period
  • b) Increases down the group and decreases across the period
  • c) Increases across the period and also down the group
  • d) Decreases across the period and also down the group
Q.7
Which of the following is correctly matched? .. [ Tamilnadu CET 2002]
  • a) C - C bond length --- 0.077nm
  • b) Ionic radius of Na+ --- 0.136 nm
  • c) C - Cl bond length --- 0.176 nm
  • d) Ionic radius of F- --- 0.095 nm
Q.8
Which is true about the electronegativity order of the following elements? [ BVP Pune 2002]
  • a) P > Si
  • b) C > N
  • c) Br > Cl
  • d) Sr > Ca
Q.9
Which of the following order is correct for the first ionization potential of B, C and N .. [ MP PMT 2002]
  • a) B > C > N
  • b) N > C > B
  • c) N > C < B
  • d) N < C < B
Q.10
The number of elements present in fifth period is ..
  • a) 18
  • b) 32
  • c) 8
  • d) 24
0 h : 0 m : 1 s