Solved papers for NEET Chemistry NEET PYQ-Alkaline Earth Metals

done NEET PYQ-Alkaline Earth Metals Total Questions - 13

• question_answer1) The correct order of increasing thermal stability of \[{{K}_{2}}C{{O}_{3}},\,MgC{{O}_{3}},\,CaC{{O}_{3}}\] and \[BeC{{O}_{3}}\] is: [AIPMT (S) 2007]
  A)
  \[BeC{{O}_{3}}<MgC{{O}_{3}}<{{K}_{2}}C{{O}_{3}}<CaC{{O}_{3}}\]    
  done clear
  B)
  \[BeC{{O}_{3}}<MgC{{O}_{3}}<CaC{{O}_{3}}<{{K}_{2}}C{{O}_{3}}\]
  done clear
  C)
  \[MgC{{O}_{3}}<BeC{{O}_{3}}<CaC{{O}_{3}}<{{K}_{2}}C{{O}_{3}}\]    
  done clear
  D)
  \[{{K}_{2}}C{{O}_{3}}<MgC{{O}_{3}}<CaC{{O}_{3}}<BeC{{O}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer2) In which of the following the hydration energy is higher than the lattice energy?  [AIPMT (S) 2007]
  A)
  \[BaS{{O}_{4}}\]
  done clear
  B)
  \[MgS{{O}_{4}}\]
  done clear
  C)
  \[RaS{{O}_{4}}\]
  done clear
  D)
  \[SrS{{O}_{4}}\]
  done clear
  View Answer play_arrow

• question_answer3) Which of the following alkaline earth metal sulphates has hydration enthalpy higher than the lattice enthalpy?                      [AIPMT (S) 2010]
  A)
  \[CaS{{O}_{4}}\]
  done clear
  B)
  \[BeS{{O}_{4}}\]         
  done clear
  C)
  \[BaS{{O}_{4}}\]
  done clear
  D)
  \[SrS{{O}_{4}}\]
  done clear
  View Answer play_arrow

• question_answer4) Property of the alkaline earth metals that increases with their atomic number  [AIPMT (S) 2010]
  A)
  solubility of their hydroxides in water
  done clear
  B)
  solubility of their sulphates in water
  done clear
  C)
  ionisation energy
  done clear
  D)
  electro negativity
  done clear
  View Answer play_arrow

• question_answer5) Match list I with list II for the compositions of substances and select the correct answer using the code given below the lists.   [AIPMT (M) 2011]

  List I (Substances)	List II (Composition)
  Plaster of Pairs Epsomite Kieserite D. Gypsum	1. \[CaS{{O}_{4}}\cdot 2{{H}_{2}}O\] 2. \[CaS{{O}_{4}}.\frac{1}{2}{{H}_{2}}O\] 3. \[MgS{{O}_{4}}\cdot 7{{H}_{2}}O\] 4. \[MgS{{O}_{4}}\cdot {{H}_{2}}O\] 5. \[CaS{{O}_{4}}\]

  A)

  3

  4

  1

  2

  done clear
  B)

  2

  3

  4

  1

  done clear
  C)
  done clear
  D)

  4

  3

  2

  1

  done clear
  View Answer play_arrow

• question_answer6) Solubility of the alkaline earth's metal sulphates in water decreases in the sequence [NEET 2015 (C)]
  A)
  \[Mg>Ca>Sr>Ba\]        
  done clear
  B)
  \[Ca>Sr>Ba>Mg\]
  done clear
  C)
  \[Sr>Ca>Mg>Ba\]        
  done clear
  D)
  \[Ba>Mg>Sr>Ca\]
  done clear
  View Answer play_arrow

• question_answer7) On heating which of the following releases \[C{{O}_{2}}\] most easily?                        [NEET 2015 (Re)]
  A)
  \[{{K}_{2}}C{{O}_{3}}\]
  done clear
  B)
  \[N{{a}_{2}}C{{O}_{3}}\]
  done clear
  C)
  \[MgC{{O}_{3}}\]
  done clear
  D)
  \[CaC{{O}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer8) Which of the following statements is false?  [NEET - 2016]
  A)
  \[M{{g}^{2+}}\] ions form a complex with ATP
  done clear
  B)
  \[C{{a}^{2+}}\] ions are important in blood clotting [c] \[C{{a}^{2+}}\] ions are not important in maintaining the regular beating of
  done clear
  C)
  the heart. \[M{{g}^{2+}}\] ions are important in the green parts of plants.
  done clear
  D)
  None of these
  done clear
  View Answer play_arrow

• question_answer9) Which of the following oxides is most acidic in nature?                              [NEET - 2018]
  A)
  \[\text{BaO}\]
  done clear
  B)
  \[\text{BeO}\]
  done clear
  C)
  \[\text{MgO}\]
  done clear
  D)
  \[\text{CaO}\]
  done clear
  View Answer play_arrow

• question_answer10) Among \[\text{Ca}{{\text{H}}_{\text{2}}}\], \[\text{Be}{{\text{H}}_{\text{2}}}\], \[\text{Ba}{{\text{H}}_{\text{2}}}\], the order of ionic character is         [NEET - 2018]
  A)
  \[\text{Be}{{\text{H}}_{\text{2}}}\text{ Ba}{{\text{H}}_{\text{2}}}\text{ Ca}{{\text{H}}_{\text{2}}}\]
  done clear
  B)
  \[\text{Ca}{{\text{H}}_{\text{2}}}\text{ Be}{{\text{H}}_{\text{2}}}\text{ Ba}{{\text{H}}_{\text{2}}}\]
  done clear
  C)
  \[\text{Be}{{\text{H}}_{\text{2}}}\text{ Ca}{{\text{H}}_{\text{2}}}\text{ Ba}{{\text{H}}_{\text{2}}}\]
  done clear
  D)
  \[\text{Ba}{{\text{H}}_{\text{2}}}\text{ Be}{{\text{H}}_{\text{2}}}\text{ Ca}{{\text{H}}_{\text{2}}}\]
  done clear
  View Answer play_arrow

• question_answer11) Which of the following is an amphoteric hydroxide?                          [NEET 2019]
  A)
  \[Mg{{(OH)}_{2}}\]
  done clear
  B)
  \[Be{{(OH)}_{2}}\]
  done clear
  C)
  \[Sr{{(OH)}_{2}}\]
  done clear
  D)
  \[Ca{{(OH)}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer12) The method used to remove temporary hardness of water is:                          [NEET 2019]
  A)
  Ion-exchange method
  done clear
  B)
  Synthetic resins method
  done clear
  C)
  Calgon’s method
  done clear
  D)
  clark’s method
  done clear
  View Answer play_arrow

• question_answer13) \[HCl\] was passed through a solution of \[CaC{{l}_{2}},\text{ }MgC{{l}_{2}}\] and \[NaCl\]. Which of the following compound(s) crystallise(s)? [NEET 2020]
  A)
  Only \[NaCl\]
  done clear
  B)
  Only \[MgC{{l}_{2}}\]
  done clear
  C)
  \[NaCl,\text{ }MgC{{l}_{2}}\] and \[CaC{{l}_{2}}\]
  done clear
  D)
  Both \[MgC{{l}_{2}}\] and \[CaC{{l}_{2}}\]
  done clear
  View Answer play_arrow