Group 2 Elements: Reactivity and Properties
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Questions and Answers

What is the product of the reaction between calcium and dilute hydrochloric acid?

  • Calcium chloride (correct)
  • Calcium sulfate
  • Calcium hydroxide
  • Calcium carbonate

Which acid is used to produce a metal sulfate?

  • Dilute hydrochloric acid
  • Dilute acetic acid
  • Dilute sulfuric acid (correct)
  • Dilute nitric acid

What is the purpose of calcium hydroxide in agriculture?

  • To decrease the pH of the soil
  • To fertilize the soil
  • To neutralise acid soils (correct)
  • To increase the pH of the soil

What is the ionic equation for the neutralisation of excess stomach acid?

<p>H+ (aq) + OH- (aq) → H₂O (A)</p> Signup and view all the answers

What is the product of the reaction between magnesium and dilute sulfuric acid?

<p>Magnesium sulfate (C)</p> Signup and view all the answers

What is the purpose of magnesium hydroxide in some indigestion tablets?

<p>To neutralise excess stomach acid (D)</p> Signup and view all the answers

What is the general name for the group 2 elements?

<p>Alkaline earth metals (B)</p> Signup and view all the answers

What is the product of the reaction between strontium and dilute hydrochloric acid?

<p>Strontium chloride (C)</p> Signup and view all the answers

What is the purpose of calcium carbonate in some indigestion tablets?

<p>To neutralise excess stomach acid (D)</p> Signup and view all the answers

What is the equation for the reaction between calcium and dilute hydrochloric acid?

<p>Ca(s) + 2HCl(aq) → CaCl2(aq) + H2(g) (A)</p> Signup and view all the answers

What is the common outer electron configuration of the group 2 metals?

<p>s² (C)</p> Signup and view all the answers

What is the charge of the ions formed when group 2 metals react?

<p>+2 (A)</p> Signup and view all the answers

How do the reactivity of group 2 metals compare to group 1 metals?

<p>They are less reactive (B)</p> Signup and view all the answers

What is the electron configuration of a calcium ion?

<p>[2,8,8]²⁺ (D)</p> Signup and view all the answers

What happens to the outer electrons of group 2 metals when they react?

<p>They lose an electron (B)</p> Signup and view all the answers

What is the common product of the reaction between a metal and water, and a metal and acid?

<p>Hydrogen (D)</p> Signup and view all the answers

Which of the following reactions involves the formation of a metal oxide?

<p>Metal + Oxygen (B)</p> Signup and view all the answers

What is the main reason for the decrease in first ionisation energy down Group 2?

<p>Shielding increases (A)</p> Signup and view all the answers

What is the result of the reaction between a metal and water, in terms of the metal's oxidation state?

<p>The metal is oxidized (B)</p> Signup and view all the answers

Which of the following trends is not observed in Group 2 elements?

<p>Electronegativity decreases down the group (D)</p> Signup and view all the answers

What is the main consequence of the increase in atomic radius down Group 2?

<p>Outer electrons are lost more easily (B)</p> Signup and view all the answers

What is the common reactant in all three reactions?

<p>Metal (A)</p> Signup and view all the answers

Which reaction does not involve the formation of a compound containing hydrogen?

<p>Metal + Oxygen (C)</p> Signup and view all the answers

Why do Group 2 elements exhibit increased reactivity down the group?

<p>The outer electrons are lost more easily (D)</p> Signup and view all the answers

What is the relationship between atomic radius and first ionisation energy in Group 2 elements?

<p>As atomic radius increases, first ionisation energy decreases (A)</p> Signup and view all the answers

What is the trend in the reactivity of the alkaline earth metals across Period 3?

<p>It increases (A)</p> Signup and view all the answers

Which of the following elements is most reactive?

<p>Mg (D)</p> Signup and view all the answers

What is the oxidation state of the alkaline earth metals in their compounds?

<p>+2 (B)</p> Signup and view all the answers

Which element is a metalloid?

<p>P (C)</p> Signup and view all the answers

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