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The s-Block Elements NEET Questions : NEET Previous year Papers

1. Ionic mobility of which of the following alkali metal ions is lowest when aqueous solution of their salts are put under an electric field?      (NEET 2017)

(a) K                           (b) Rb

(c) Li                          (d) Na

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2. Which one of the alkali metals, forms only, the normal oxide, M2O on heating in air?    (2012)

(a) Rb                    (b) K

(c) Li                     (d) Na

3. The ease of adsorption of the hydrated alkali metal ions on an ion-exchange resins follows the order                                                                    (2012)

(a) Li+ < K+ < Na+< Rb+

(b) Rb+ < K+ < Na+< Li+

(c) K+ < Na+ < Rb+ < Li+

(d) Na+ < Li+ < K+ < Rb+


4. The sequence of ionic mobility in aqueous solutionis              (2008)

(a) Rb+ > K+ > Cs+ > Na+

(b) Na+ > K+ > Rb+ > Cs+

(c) K+ > Na+ > Rb+ > Cs+

(d) Cs+ > Rb+ > K+ > Na+

7. In the case of alkali metals, the covalent character decreases in the order         (2009)

(a) MF > MCl > MBr > MI

(b) MF > MCl > MI > MBr

(c) MI > MBr > MCl > MF

(d) MCl > MI > MBr > MF


8. The alkali metals form salt-like hydrides by the direct synthesis at elevated temperature. The thermal stability of these hydrides decreases in which of the Following orders?      (2008)

(a) NaH > LiH > KH > RbH > CsH

(b) LiH > NaH > KH > RbH > CsH

(c) CsH > RbH > KH > NaH > LiH

(d) KH > NaH > LiH > CsH > RbH


The s-Block Elements NEET Questions : NEET Previous year Papers


NEET Questions of The p-Block Elements Chapter All Previous year questions


The p-Block Elements NEET Questions : NEET Previous year questions

10. Which of the alkali metal chloride (MCl) forms its dehydrate salt (MCl.2H2O) easily?                                                                                         (NEET 2019)

(a) LiCl                (b) CsCl

(c) RbCl               (d) KCl

11. Crude sodium chloride obtained by crystallization of brine solution does not contain                                                                                     (NEET 2019)

(a) MgSO4             (b) Na2SO4

(c) MgCl2              (d) CaSO4


12. In Costner-Kellner cell for production of sodium hydroxide   (NEET 2013)

(a) Brine is electrolyzed using graphite electrodes

(b) Molten sodium chloride is electrolyzed

(c) Sodium amalgam is formed at mercury cathode

(d) Brine is electrolyzed with Pt electrodes.

13. Which of the following statements is incorrect?                     (NEET 2011)

(a) Pure sodium metal dissolves in liquid ammonia to give blue solution.

(b) NaOH reacts with glass to give sodium silicate.

(c) Aluminum reacts with excess NaOH to give Al(OH)3.

(d) NaHCO3 on heating gives Na2CO3.


The s-Block Elements NEET Questions : NEET Previous year Papers


NEET Questions of The p-Block Elements Chapter All Previous year questions


The p-Block Elements NEET Questions : NEET Previous year questions

17. The following metal ion activates many enzymes, participates in the oxidation of glucose to produce ATP and with Na, is responsible for the transmission of nerve signals.                                                                (NEET 2020)

(a) Iron                                      (b) Copper

(c) Calcium                                (d) Potassium


18. The function of “Sodium pump” is a biological process operating in each and every cell of all animals. Which of the following biologically important ions is also a constituent of this pump?                                                      (2015)

(a) K+                                         (b) Fe2+

(c) Ca2+                                      (d) Mg2+

19. Magnesium reacts with an element (X) to form an ionic compound. If the ground state electronic configuration of (X) is 1s2 2s2 2p3, the simplest

Formula for this compound is                                                      (NEET 2018)

(a) Mg2X3                       (b) MgX2

(c) Mg2X                  (d) Mg3X2

23. HCl was passed through a solution of CaCl2, MgCl2 and NaCl. Which of the following compound(s) crystallize(s)?                                         (NEET 2020)

(a) Both MgCl2 and CaCl2

(b) Only NaCl

(c) Only MgCl2

(d) NaCl, MgCl2 and CaCl2


24. Which of the following is an amphoteric hydroxide?            (NEET 2019)

(a) Be(OH)2                   (b) Sr(OH)2

(c) Ca(OH)2                    (d) Mg(OH)2

25. Among CaH2, BeH2, BaH2, the order of ionic character is     (NEET 2018)

(a) BeH2 < CaH2 < BaH2

(b) CaH2 < BeH2 < BaH2

(c) BeH2 < BaH2 < CaH2

(d) BaH2< BeH2 < CaH2


The s-Block Elements NEET Questions : NEET Previous year Papers


NEET Questions of The p-Block Elements Chapter All Previous year questions


The p-Block Elements NEET Questions : NEET Previous year questions

26. On heating which of the following releases CO2 most easily? (2015)

(a) Na2CO3                   (b) MgCO3

(c) CaCO3                    (d) K2CO3

27. Solubility of the alkaline earth metal sulphates in water decreases in the sequence                                                                                                (2015)

(a) Sr > Ca > Mg > Ba                (b) Ba > Mg > Sr > Ca

(c) Mg > Ca > Sr > Ba                (d) Ca > Sr > Ba > Mg


28. Which of the following compounds has the lowest melting point?           (2011)

(a) CaCl2                (b) CaBr2

(c) CaI2                  (d) CaF2

29. Which of the following alkaline earth metal sulphates has hydration enthalpy higher than the lattice enthalpy?                                                        (2010)

(a) CaSO4                      (b) BeSO4

(c) BaSO4                       (d) SrSO4


The s-Block Elements NEET Questions : NEET Previous year Papers


NEET Questions of The p-Block Elements Chapter All Previous year questions


The p-Block Elements NEET Questions : NEET Previous year questions

30. Which one of the following compounds is a peroxide?                   (2010)

(a) KO2                                      (b) BaO2

(c) MnO2                                   (d) NO2

31. Property of the alkaline earth metals that increases with their atomic number         (2010)

(a) Solubility of their hydroxides in water

(b) Solubility of their sulphates in water

(c) Ionization energy

(d) Electronegativity

32. Which of the following oxides is not expected to react with sodium hydroxide?    (2009)

(a) CaO                            (b) SiO2

(c) BeO                            (d) B2O3


33. The correct order of increasing thermal stability of K2CO3, MgCO3, CaCO3 and BeCO3 is                                                                                       (2007)

(a) BeCO3 < MgCO3 < CaCO3 < K2CO3

(b) MgCO3< BeCO3< CaCO3 < K2CO3

(c) K2CO3 < MgCO3 < CaCO3 < BeCO3

(d) BeCO3 < MgCO3 < K2CO3 < CaCO3

34. In which of the following the hydration energy is higher than the lattice energy?    (2007)

(a) MgSO4               (b) RaSO4

(c) SrSO4                (d) BaSO4

38. In context with beryllium, which one of the following statements is incorrect? (NEET-II 2016)

(a) It is rendered passive by nitric acid.

(b) It forms Be2C.

(c) Its salts rarely hydrolyze.

(d) Its hydride is electron-deficient and polymeric.

39. The suspension of slaked lime in water is known as              (NEET-II 2016)

(a) Lime water          (b) quick lime

(c) Milk of lime          (d) aqueous solution of slaked lime


40. The product obtained as a result of a reaction of nitrogen with CaC2 is     (NEET-I 2016)

(a) CaCN3                                  (b) Ca2CN

(c) Ca(CN)2                               (d) CaCN