Q.1
The common oxidation states of Ti are …[ AIPMT 1994]
  • a) +2, +3
  • b) +3, +4
  • c) 3, -4
  • d) +2, +3, +4
Q.2
Bell-metal is an alloy of …[ AIPMT 1999]
  • a) Cu + Pb
  • b) Cu + Sn
  • c) Cu + Zn
  • d) Cu + Ni
Q.3
Match column-A and B
Column-A Column-B
V4+ a. colourless
Ti3+ b. pink
Ti4+ c. purple
Mn2+ d. blue
-- -- e. vilot
  • a) 1 → d;   2 → c;   3 → a;   4 → e
  • b) 1 → d;   2 → c;   3 → a;   4 → b
  • c) 1 → d;   2 → e;   3 → a;   4 → b
  • d) 1 → e;   2 → c;   3 → b;   4 → a
Q.4
The metal present in insulin is …[ CET Kurukshetra 1992]
  • a) Cu
  • b) Fe
  • c) Zn
  • d) Mg
Q.5
Zinc, cadmium and mercury are ..
  • a) d-block elements
  • b) p-block elements
  • c) s-block elements
  • d) f-block elements
Q.6
Which of the following statements(s) is/are correct with reference to the ferrous and ferric ions? [ IIT 1998]
  • a) Fe3+ gives brown colour with potassium ferricyanide
  • b) Fe3+ gives blue precipitate with potassium ferricyanide
  • c) Fe3+ gives red colour with potassium ferricyanide
  • d) All of the above
Q.7
Which of the following arrangements does nt represent the correct order of the property stated against it ? …[ JEE 2013]
  • a) Co3+ < Fe3+ < Cr3+ < Sc3+ : Stability in aqueous solution
  • b) Sc < Ti < Cr < Mn : number of oxidation states
  • c) V2+ < Cr2+ < Mn2+ < Fe2+ : paramagnetic behavior
  • d) Ni2+ < Co2+ < Fe2+ < Mn2+ : iionic size
Q.8
Platinum, palladium, iridium, etc,. are called noble metals because..
  • a) Alfred Nobel discovered them
  • b) They are inert towards many common reagents
  • c) They are shining, lustrous and pleasing to look
  • d) They are found in native state
Q.9
Cuprous compounds such as CuCl, CUCN and CuSCN are the only salts stable in H2O due to …[ AIMPT 1996]
  • a) High hydration energy of Cu+ ions
  • b) Their inherent tendency not to disproportionate
  • c) Diamagnetic nature
  • d) Insolubility in water
Q.10
Assertion : Potassiium ferrocyanide is diamagnetic, whereas potassium ferricyanide is paramagnetic Reason : Crystal filed splitting in ferrocyanide ion is greater than that of ferricyanide ion
  • a) Assertion and Reason both are correct and Reason is correct explanation to Assertion
  • b) Assertion and Reason both are correct and Reason is not correct explanation to Assertion
  • c) Assertion is correct but reason is wrong
  • d) Assertion is wrong but reason is correct
Q.11
The lanthanoids contraction is responsible for the fact that …[ AIEEEE 2005]
  • a) Zr and Y have about the same radius
  • b) Zr and Nb have similar oxidation state
  • c) Zr and Hf have about the same radius
  • d) Zr and Zn have the same oxidation state
Q.12
Which of Lanthanide compound is used in pigment ? (Gujarat-2009)
  • a) Tb(OH)3
  • b) Lu(OH)3
  • c) Ce(OH)3
  • d) CeO2
Q.13
Photographic plates and films have an essential ingredient of …[ AIPMT 1989]
  • a) Silver nitrate
  • b) Silver bromide
  • c) Sodium chloride
  • d) Oleic acid
Q.14
From an aqueous solution of zinc sulphate, normal zinc carbonate may be precipitated by …
  • a) Passing CO2
  • b) Warming with NaHCO3
  • c) Adding Na2CO3
  • d) Boiling with CaCO3
Q.15
A solution when diluted with H2O and boiled gives a white ppt. On addition of excess NH4Cl/NH4OH, the volume of precipitate decreases due to dissolution leaving behind a white gelatinous precipitate. The precipitate which dissolves in NH4OH/ NH4Cl is …[ IIT 2006]
  • a) Zn(OH)2
  • b) Al(OH)2
  • c) Mg(OH)2
  • d) Ca(OH)2
Q.16
Which of following is proper reason for stability of Gd3+ ion. (Tamilnadu-CET-2002)
  • a) 4f orbital is completely filled
  • b) 4f orbital is half filled
  • c) show electronic configuration similar to inert gas.
  • d) 4f orbital is completely vacant
Q.17
The lanthanide contraction is responsible for the fact that ..[ AIPMT 1997]
  • a) Zr and Yt have about the same radius
  • b) Zr and Nb have similar oxidation states
  • c) Zr and Hf have about the same radius
  • d) Zr and Zn have the same oxidation state
Q.18
Which of the following statements is not correct?
  • a) La(OH)2, iis less basic than Lu(OH)3
  • b) In lanthanoid series, ionic radius of Ln+3 ions decreases
  • c) La is actually an element of transition series rather than lanthanoid series
  • d) Atomic radii of Zr and Hf are same because of lanthanoid contraction
Q.19
The colour of zinc sulphide is
  • a) Yellow
  • b) White
  • c) Brown
  • d) Black
Q.20
K2Cr2O7 on heating with aqueous NaOH gives …[ AIPMT 1997]
  • a) CrO42-
  • b) Cr(OH)3
  • c) Cr2O72-
  • d) Cr(OH)2
Q.21
Among the following, the compound that is both paramagnetic and cooloured is …. [ IIT 1997]
  • a) K2Cr2O7
  • b) (NH4)2[TiCl6]
  • c) VOSO4
  • d) K3[Cu(CN)4]
Q.22
Which statement is incorrect?
  • a) Iron belongs to 3d-transitiion series of periodic table
  • b) Iron belongs to f-block of the periodic table
  • c) Iron belongs to first transition series
  • d) Iron belongs to group VIII of the periodic table
Q.23
In the silver plating of copper K[Ag(CN)2] is used instead of AgNO3 The reason is [ AIPMT 2002]
  • a) A thin layer of Ag is formed on Cu
  • b) More voltahe is required
  • c) Ag+ ions are completely removed from solution
  • d) Less availability of Ag+ ion as Cu can not displace Ag from [Ag(CN)2]- ion
Q.24
Lanthanoides elements are separated on the basis of their ... ..
  • a) chemical properties
  • b) difference in basicity
  • c) physical properties
  • d) difference in acidity
Q.25
Which of the following compounds is expected to be coloured? [ IIT 1997]
  • a) Ag2SO4
  • b) CuF2
  • c) MgF2
  • d) CuCl
Q.26
he colour of Mohr’s salt, (NH4)2SO4Fe(SO4) . 6H2O is
  • a) White
  • b) Green
  • c) Violet
  • d) Blue
Q.27
When (NH4) 2 Cr2O7 Is heated, the gas evolved is …[ AIPMT 1994]
  • a) N2
  • b) NO2
  • c) O2
  • d) N2 O
Q.28
Zn and Cd do noot show variable valency, because ... ..
  • a) they have only two electronns in outermost sunshells
  • b) their d-subshells are complete
  • c) their d-subshells are incomplete
  • d) they are relatively hard metals
Q.29
When excess of SnCl2 is added to a solution of HgCl2, a white ppt. turning to grey is obtained. This grey colour is due to the formation of …[PET MP 19990]
  • a) Hg2Cl2
  • b) SnCl4
  • c) Sn
  • d) Hg2
Q.30
Which set represents an example of non-typical transition elements?
  • a) Zn, Cd, Hg
  • b) Sc, Ti, V
  • c) Cu, Ag, Au
  • d) Cr, Fe, Mn
0 h : 0 m : 1 s