NEET The s-Block Elements PYQ practice sheet

7 previous-year NEET Chemistry questions from The s-Block Elements, newest papers first. The s-Block Elements carries 10 of the Chemistry questions in NEET 2020 to 2026, so this is a good place to test yourself after revising the chapter. Marking: +4 correct, −1 wrong.

1. 1.

   NEET 2023

   Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R : Assertion A : Metallic sodium dissolves in liquid ammonia giving a deep blue solution, which is paramagnetic. Reasons R : The deep blue solution is due to the formation of amide. In the light of the above statements, choose the correct answer from the options given below :

   • (A)
     A is false but R is true.
   • (B)
     Both A and R are true and R is the correct explanation of A.
   • (C)
     Both A and R are true but R is NOT the correct explanation of A.
   • (D)
     A is true but R is false.
2. 2.

   NEET 2023

   Which one of the following statements is correct?

   • (A)
     Mg plays roles in neuromuscular function and interneuronal transmission.
   • (B)
     The daily requirement of Mg and Ca in the human body is estimated to be $0.2 - 0.3\ \mathrm{g}$.
   • (C)
     All enzymes that utilise ATP in phosphate transfer require Ca as the cofactor.
   • (D)
     The bone in human body is an inert and unchanging substance.
3. 3.

   NEET 2022

   Match List - I with List - II: Choose the correct answer from the options given below:

   • (A)
     (a)-(ii), (b)-(iii), (c)-(i), (d)-(iv)
   • (B)
     (a)-(iv), (b)-(i), (c)-(iii), (d)-(ii)
   • (C)
     (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
   • (D)
     (a)-(i), (b)-(iii), (c)-(ii), (d)-(iv)
4. 4.

   NEET 2022

   Identify the incorrect statement from the following:

   • (A)
     Lithium is the strongest reducing agent among the alkali metals.
   • (B)
     Alkali metals react with water to form their hydroxides.
   • (C)
     The oxidation number of K in $\mathrm{KO_2}$ is $+4$.
   • (D)
     Ionisation enthalpy of alkali metals decreases from top to bottom in the group.
5. 5.

   NEET 2021

   The structures of beryllium chloride in solid state and vapour phase, are :

   • (A)
     Chain in both
   • (B)
     Chain and dimer, respectively
   • (C)
     Dimer and Linear, respectively
   • (D)
     Linear in both
6. 6.

   NEET 2021

   Among the following alkaline earth metal halides, one which is covalent and soluble in organic solvents is :

   • (A)
     Magnesium chloride
   • (B)
     Strontium chloride
   • (C)
     Calcium chloride
   • (D)
     Beryllium chloride
7. 7.

   NEET 2020

   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.

   • (A)
     Iron
   • (B)
     Copper
   • (C)
     Calcium
   • (D)
     Potassium