NEET Chemistry Physics Biology


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Категория: Образование


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Гео и язык канала
Индия, Английский
Категория
Образование
Статистика
Фильтр публикаций


The compound PCl₅ exhibits which molecular geometry?
Опрос
  •   Trigonal bipyramidal
  •   Tetrahedral
  •   Octahedral
  •   Square pyramidal
82 голосов


In the reaction 2H₂(g) + O₂(g) → 2H₂O(l), the oxidation state of oxygen in O₂ is
Опрос
  •  
  •   -1
  •   -2
  •   -3
65 голосов


Which of the following elements is a transition metal?
Опрос
  •   Zn
  •   Al
  •   Fe
  •   Na
63 голосов


The electronic configuration of Cr³⁺ ion is:
Опрос
  •   [Ar]3d³
  •   [Ar]3d⁴
  •   [Ar]3d⁵
  •   [Ar]3d⁶
53 голосов


In the coordination complex [Cu(NH₃)₄]²⁺, the coordination number of copper is:
Опрос
  •   2
  •   4
  •   6
  •   8
31 голосов


Which of the following compounds is NOT a Lewis acid?
Опрос
  •   BF₃
  •   AlCl₃
  •   CH₄
  •   SiH₄
55 голосов


The element that does not exhibit the allotropy is
Опрос
  •   Carbon
  •   Phosphorus
  •   Sulphur
  •   Selenium
52 голосов


Which element in the 5d series has a strong tendency to form complexes and exhibits a high magnetic moment in its +3 oxidation state?
Опрос
  •   Palladium
  •   Platinum
  •   Rhodium
  •   Ruthenium
37 голосов


The element that does not exhibit variable oxidation states is
Опрос
  •   Copper
  •   Manganese
  •   Iron
  •   Chromium
43 голосов


The oxidation state +3 is the most common oxidation state for which of the following transition metal series?
Опрос
  •   3d series
  •   4d series
  •   5d series
  •   All of the above
38 голосов


Which lanthanide element is used in the production of "white light" in television and computer screens?
Опрос
  •   Europium
  •   Gadolinium
  •   Neodymium
  •   Terbium
39 голосов


The maximum magnetic moment is exhibited by which of the following ions?
Опрос
  •   Fe²⁺
  •   Fe³⁺
  •   Mn²⁺
  •   Mn³⁺
44 голосов


Which of the following elements is not a lanthanide?
Опрос
  •   Lutetium
  •   Yttrium
  •   Gadolinium
  •   Europium
47 голосов


Among the 4d and 5d series, which one has a larger number of elements?
Опрос
  •   4d series
  •   5d series
  •   Both have an equal number of elements
  •   It depends on the specific period of the periodic table
43 голосов


Which element in the 4f series exhibits the maximum number of oxidation states?
Опрос
  •   Gadolinium
  •   Europium
  •   Lanthanum
  •   Cerium
42 голосов


Which element is known as the "lanthanoid contraction"?
Опрос
  •   Scandium
  •   Lutetium
  •   Actinium
  •   Thorium
47 голосов


In which transition series does the filling of 4f orbitals occur?
Опрос
  •   First transition series
  •   Second transition series
  •   Third transition series
  •   Fourth transition series
48 голосов




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