12th Class Chemistry The p-block Elements-II / p-ब्लॉक तत्व-II Question Bank

done MCQs - The p-Block Elements Total Questions - 15

• question_answer1)
  Which of the following will show highest solubility in water?
  A)
  \[N{{H}_{3}}\] done clear
  B)
  \[P{{H}_{3}}\] done clear
  C)
  \[As{{H}_{3}}\] done clear
  D)
  \[Sb{{H}_{3}}\] done clear
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• question_answer2)
  Pure nitrogen is obtained from
  A)
  \[{{\operatorname{NH}}_{3}}+NaN{{O}_{3}}\] done clear
  B)
  \[{{N}_{2}}O+Cu\] done clear
  C)
  \[N{{H}_{4}}Cl+NaN{{O}_{2}}\] done clear
  D)
  \[(N{{H}_{4}})C{{r}_{2}}{{O}_{7}}\] done clear
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• question_answer3)
  Which of the following products will be obtained on heating ammonium dichromate?
  A)
  Chromium oxide and ammonia done clear
  B)
  Chromic acid and ammonia done clear
  C)
  Chromic acid and nitrogen done clear
  D)
  Chromium oxide and nitrogen done clear
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• question_answer4)
  Large scale manufacture of nitric acid by Ostwald process takes place using the reaction
  A)
  \[2NaN{{O}_{3}}+{{H}_{2}}S{{O}_{4}}\to N{{a}_{2}}S{{O}_{4}}+2HN{{O}_{2}}\] done clear
  B)
  \[4N{{H}_{3}}+5{{O}_{2}}\to 4NO+6{{H}_{2}}O\] done clear
  C)
  \[NO_{2}^{+}+NO_{3}^{-}+{{H}_{2}}O\to 2HN{{O}_{3}}\] done clear
  D)
  \[2NO+{{\text{O}}_{2}}+{{H}_{2}}O\to HN{{O}_{3}}+HN{{O}_{2}}\] done clear
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• question_answer5)
  Which among the following metals when treated with dil. \[HN{{O}_{3}}\], will produce nitrous oxide?
  A)
  Fe done clear
  B)
  Zn done clear
  C)
  Cu done clear
  D)
  Ag done clear
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• question_answer6)
  Production of nitrogen (I) oxide takes place by
  A)
  thermal decomposition of ammonium nitrate done clear
  B)
  interaction of hydroxyl amine and nitric acid done clear
  C)
  disproportionation of \[{{N}_{2}}{{O}_{4}}\] done clear
  D)
  substitution of ammonium sulphate done clear
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• question_answer7)
  Nitric oxide can be synthesised in the laboratory by
  A)
  treating Zn with cold and dilute \[HN{{O}_{3}}\] done clear
  B)
  treating Zn with concentrated \[HN{{O}_{3}}\] done clear
  C)
  treating copper with cold and dilute\[HN{{O}_{3}}\] done clear
  D)
  heating \[N{{H}_{4}}N{{O}_{3}}\] done clear
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• question_answer8)
  Which among the following products is obtained when oxygen is passed through a solution of \[N{{a}_{2}}S{{O}_{3}}\]?
  A)
  \[N{{a}_{2}}S{{O}_{4}}\] done clear
  B)
  \[N{{a}_{2}}S\] done clear
  C)
  \[NaHS{{O}_{4}}\] done clear
  D)
  NaH done clear
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• question_answer9)
  Which of the following will not yield oxygen on reaction with ozone?
  A)
  \[{{H}_{2}}{{O}_{2}}\] done clear
  B)
  \[S{{O}_{2}}\] done clear
  C)
  KI done clear
  D)
  Hg done clear
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• question_answer10)
  Ozone \[({{O}_{3}})\] reacts with potassium iodide in a neutral medium. What will be the product obtained?
  A)
  KCl done clear
  B)
  KOH done clear
  C)
  \[KI{{O}_{3}}\] done clear
  D)
  \[K{{O}_{2}}\] done clear
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• question_answer11)
  What change is observed if \[S{{O}_{2}}\] is passed through acidified \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\] solution?
  A)
  The solution turns blue done clear
  B)
  The solution gets decolourised done clear
  C)
  \[S{{O}_{2}}\] is reduced done clear
  D)
  Green \[C{{r}_{2}}{{\text{(}S{{O}_{4}}\text{)}}_{3}}\] is formed done clear
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• question_answer12)

  Complete the following analogy.

  Powerful oxidising agent: A :: Least active halogen : B

  A)
  A : Fluorine, B : Iodine done clear
  B)
  A : Chlorine, B: Fluorine done clear
  C)
  A : Iodine, B : Bromine done clear
  D)
  A : Bromine, B: Chlorine done clear
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• question_answer13)
  On hydrolysis of C1F, it forms
  A)
  HCl+HOF done clear
  B)
  \[C{{l}_{2}}O+HF\] done clear
  C)
  HOCl + HF done clear
  D)
  None of these done clear
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• question_answer14)
  Which of the following is correct order of bond angles?
  A)
  \[{{H}_{2}}O>O{{F}_{2}}>C{{1}_{2}}O>Cl{{O}_{2}}\] done clear
  B)
  \[O{{F}_{2}}>OC{{l}_{2}}>{{H}_{2}}O>Cl{{O}_{2}}\] done clear
  C)
  \[Cl{{O}_{2}}>C{{l}_{2}}O>{{\text{H}}_{2}}O>O{{F}_{2}}\] done clear
  D)
  \[O{{F}_{2}}>{{H}_{2}}O>C{{l}_{2}}O>Cl{{O}_{2}}\] done clear
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• question_answer15)
  The oxidation number of xenon is .......
  A)
  zero done clear
  B)
  2 done clear
  C)
  4 done clear
  D)
  1 done clear
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