JEE Main & Advanced Chemistry The Solid State / ठोस प्रावस्था Question Bank

done Crystal structure and Coordination number Total Questions - 34

• question_answer1)
  A solid has a structure in which \['W'\] atoms are located at the corners of a cubic lattice \['O'\] atoms at the centre of edges and \['Na'\] atoms at the centre of the cube. The formula for the compound is     [KCET  1996]
  A)
  \[NaW{{O}_{2}}\]            done clear
  B)
  \[NaW{{O}_{3}}\] done clear
  C)
  \[N{{a}_{2}}W{{O}_{3}}\]             done clear
  D)
  \[NaW{{O}_{4}}\] done clear
  View Solution play_arrow

• question_answer2)
  Potassium crystallizes in a \[bcc\] lattice, hence the coordination number of potassium in potassium metal is [KCEE 1993]
  A)
  0              done clear
  B)
  4 done clear
  C)
  6              done clear
  D)
  8 done clear
  View Solution play_arrow

• question_answer3)
  Body centered cubic lattice has a coordination number of [AIIMS 1996; MP PMT 2002]
  A)
  4              done clear
  B)
  8 done clear
  C)
  12           done clear
  D)
  6 done clear
  View Solution play_arrow

• question_answer4)
  A compound is formed by elements \[A\]and \[B.\] This crystallizes in the cubic structure when atoms \[A\]are the corners of the cube and atoms \[B\] are at the centre of the body. The simplest formula of the compounds is [KCET 1993; CBSE PMT 2000; Kerala PMT 2002]
  A)
  \[AB\]   done clear
  B)
  \[A{{B}_{2}}\] done clear
  C)
  \[{{A}_{2}}B\]    done clear
  D)
  \[A{{B}_{4}}\] done clear
  View Solution play_arrow

• question_answer5)
  Coordination number for \[Cu\] is            [AMU 1982]
  A)
  1              done clear
  B)
  6 done clear
  C)
  8              done clear
  D)
  12 done clear
  View Solution play_arrow

• question_answer6)
  In the crystal of \[CsCl,\] the nearest neighbours of each \[Cs\] ion are  [MP PET 1993]
  A)
  Six chloride ions                done clear
  B)
  Eight chloride ions done clear
  C)
  Six \[Cs\] ions done clear
  D)
  Eight \[Cs\] ions done clear
  View Solution play_arrow

• question_answer7)
  In a cubic structure of compound which is made from X and Y, where X atoms are at the corners of the cube and Y at the face centres of the cube. The molecular formula of the compound is      [AIIMS 2000]
  A)
  \[{{X}_{2}}Y\]     done clear
  B)
  \[{{X}_{3}}Y\] done clear
  C)
  \[X{{Y}_{2}}\]     done clear
  D)
  \[X{{Y}_{3}}\] done clear
  View Solution play_arrow

• question_answer8)
  Ferrous oxide has a cubic structure and each edge of the unit cell is 5.0 Å. Assuming density of the oxide as \[4.0g-c{{m}^{-3}}\], then the number of \[F{{e}^{2+}}\] and \[{{O}^{2-}}\] ions present in each unit cell will be                [MP PET 2000]
  A)
  Four \[F{{e}^{2+}}\] and four \[{{O}^{2-}}\] done clear
  B)
  Two \[F{{e}^{2+}}\] and four \[{{O}^{2-}}\] done clear
  C)
  Four \[F{{e}^{2+}}\] and two \[{{O}^{2-}}\] done clear
  D)
  Three \[F{{e}^{2+}}\] and three \[{{O}^{2-}}\] done clear
  View Solution play_arrow

• question_answer9)
  Which of the following statements is not true about \[NaCl\] structure                  [DCE 2001]
  A)
  \[C{{l}^{-}}\]ions are in fcc arrangement done clear
  B)
  \[N{{a}^{+}}\]ions has coordination number 4 done clear
  C)
  \[C{{l}^{-}}\]ions has coordination number 6 done clear
  D)
  Each unit cell contains \[4NaCl\] molecules done clear
  View Solution play_arrow

• question_answer10)
  In \[CsCl\] structure, the coordination number of \[C{{s}^{+}}\] is [MP PMT 2001]
  A)
  Equal to that of \[C{{l}^{-}}\], that is 6 done clear
  B)
  Equal to that of \[C{{l}^{-}}\], that is 8 done clear
  C)
  Not equal to that of \[C{{l}^{-}}\], that is 6 done clear
  D)
  Not equal to that of \[C{{l}^{-}}\], that is 8 done clear
  View Solution play_arrow

• question_answer11)
  In a solid 'AB' having the \[NaCl\] structure, 'A' atoms occupy the corners of the cubic unit cell. If all the face-centered atoms along one of the axes are removed, then the resultant stoichiometry of the solid is           [IIT Screening 2001]
  A)
  \[A{{B}_{2}}\]    done clear
  B)
  \[{{A}_{2}}B\] done clear
  C)
  \[{{A}_{4}}{{B}_{3}}\]     done clear
  D)
  \[{{A}_{3}}{{B}_{4}}\] done clear
  View Solution play_arrow

• question_answer12)
  In solid \[CsCl\] each \[Cl\] is closely packed with how many \[Cs\]           [MP PET 2003]
  A)
  8              done clear
  B)
  6 done clear
  C)
  10           done clear
  D)
  2 done clear
  View Solution play_arrow

• question_answer13)
  In \[{{A}^{+}}{{B}^{-}}\]ionic compound, radii of \[{{A}^{+}}\]and \[{{B}^{-}}\]ions are \[180\,\,pm\] and \[187\,\,pm\] respectively. The crystal structure of this compound will be
  A)
  \[NaCl\] type     done clear
  B)
  \[CsCl\] type done clear
  C)
  \[ZnS\] type       done clear
  D)
  Similar to diamond done clear
  View Solution play_arrow

• question_answer14)
  In which of the following substances the carbon atom is arranged in a regular tetrahedral structure [NCERT 1978]
  A)
  Diamond              done clear
  B)
  Benzene done clear
  C)
  Graphite              done clear
  D)
  Carbon black done clear
  View Solution play_arrow

• question_answer15)
  The coordination number of a metal crystallizing in a hexagonal close packed structure is [NCERT 1978; IIT 1999]
  A)
  4              done clear
  B)
  12 done clear
  C)
  8              done clear
  D)
  6 done clear
  View Solution play_arrow

• question_answer16)
  The structure of \[MgO\] is similar to \[NaCl.\] What would be the coordination number of magnesium
  A)
  2              done clear
  B)
  4 done clear
  C)
  6              done clear
  D)
  8 done clear
  View Solution play_arrow

• question_answer17)
  How many chloride ions are there around sodium ion in sodium chloride crystal [NCERT 1979, 80; CPMT 1988; BHU 1982, 87; MP PET 1995, 99]
  A)
  3              done clear
  B)
  8 done clear
  C)
  4              done clear
  D)
  6 done clear
  View Solution play_arrow

• question_answer18)
  Most crystals show good cleavage because their atoms, ions or molecules are    [CBSE PMT 1991]
  A)
  Weakly bonded together done clear
  B)
  Strongly bonded together done clear
  C)
  Spherically symmetrical done clear
  D)
  Arranged in planes done clear
  View Solution play_arrow

• question_answer19)
  An example of a non-stoichiometric compound is [NCERT 1983]
  A)
  \[A{{l}_{2}}{{O}_{3}}\]   done clear
  B)
  \[F{{e}_{3}}{{O}_{4}}\] done clear
  C)
  \[Ni{{O}_{2}}\]  done clear
  D)
  \[PbO\] done clear
  View Solution play_arrow

• question_answer20)
  If the radius ratio is in the range of \[0.731-1,\] then the coordination number will be
  A)
  2              done clear
  B)
  4 done clear
  C)
  6              done clear
  D)
  8 done clear
  View Solution play_arrow

• question_answer21)
  If the radius ratio is in the range of \[0.414-0.732,\] then the coordination number will be
  A)
  2              done clear
  B)
  4 done clear
  C)
  6              done clear
  D)
  8 done clear
  View Solution play_arrow

• question_answer22)
  What is the coordination number of sodium in \[N{{a}_{2}}O\] [AIIMS 2003]
  A)
  6              done clear
  B)
  4 done clear
  C)
  8              done clear
  D)
  2 done clear
  View Solution play_arrow

• question_answer23)
  The ratio of cationic radius to anionic radius in an ionic crystal is greater than 0.732. Its coordination number is [KCET 2003]
  A)
  6              done clear
  B)
  8 done clear
  C)
  1              done clear
  D)
  4 done clear
  View Solution play_arrow

• question_answer24)
  In \[CsCl\]  lattice the coordination number of \[C{{s}^{+}}\] ion is
  A)
  2              done clear
  B)
  4 done clear
  C)
  8              done clear
  D)
  12 done clear
  View Solution play_arrow

• question_answer25)
  Crystal structure of \[NaCl\] is    [NCERT 1982; BHU 1995]
  A)
  \[fcc\]   done clear
  B)
  \[bcc\] done clear
  C)
  Both A and B      done clear
  D)
  None done clear
  View Solution play_arrow

• question_answer26)
  In \[NaCl\] lattice the coordination number of \[C{{l}^{-}}\] ion is
  A)
  2              done clear
  B)
  4 done clear
  C)
  6              done clear
  D)
  8 done clear
  View Solution play_arrow

• question_answer27)
  In zinc blende structure the coordination number of \[Z{{n}^{2+}}\] ion is
  A)
  2              done clear
  B)
  4 done clear
  C)
  6              done clear
  D)
  8 done clear
  View Solution play_arrow

• question_answer28)
  Coordination number of \[N{{a}^{+}}\] ion in rock salt is [BVP 2004]
  A)
  12           done clear
  B)
  4 done clear
  C)
  8              done clear
  D)
  6 done clear
  View Solution play_arrow

• question_answer29)
  The number of \[C{{l}^{-}}\] ions around one \[N{{a}^{+}}\] in \[NaCl\] crystal lattice is [MP PET 1996; BVP 2004]
  A)
  12           done clear
  B)
  4 done clear
  C)
  8              done clear
  D)
  6 done clear
  View Solution play_arrow

• question_answer30)
  The number of atoms present in unit cell of a monoatomic substance of simple cubic lattice is    [Pb. PMT 2004]
  A)
  6              done clear
  B)
  3 done clear
  C)
  2              done clear
  D)
  1 done clear
  View Solution play_arrow

• question_answer31)
  The coordination number of a metal crystallizing in a hexagonal close packed chep structure is   [MP PMT 2004]
  A)
  12           done clear
  B)
  8 done clear
  C)
  4              done clear
  D)
  6 done clear
  View Solution play_arrow

• question_answer32)
  Which of the following statement(s) is(are) correct [IIT 1998]
  A)
  The coordination number of each type of ion in \[CsCl\] crystal is 8 done clear
  B)
  A metal that crystallizes in \[bcc\] structure has a coordination number of 12 done clear
  C)
  A unit cell of an ionic crystal shares some of its ions with other unit cells done clear
  D)
  The length of the unit cell in \[NaCl\] is 552 \[pm\] \[({{r}_{N{{a}^{+}}}}=95\,\,pm;\,\,\,{{r}_{C{{l}^{-}}}}=181\,\,pm)\] done clear
  View Solution play_arrow

• question_answer33)
  The co-ordination number of \[N{{a}^{+}}\] in \[NaCl\] is [Orrisa JEE 2005]
  A)
  6              done clear
  B)
  8 done clear
  C)
  4              done clear
  D)
  1 done clear
  View Solution play_arrow

• question_answer34)
  In the calcium fluoride structure the co-ordination number of the cation and anions are respectively       [J & K  2005]
  A)
  6, 6         done clear
  B)
  8, 4 done clear
  C)
  4, 4         done clear
  D)
  4, 8 done clear
  View Solution play_arrow