hamburger menu
All Coursesall course arrow
adda247
reward-icon
adda247
    arrow
    arrow
    arrow
    Which of the following chemical reactions represents the displacement reaction?
    Question

    Which of the following chemical reactions represents the displacement reaction?

    A.

    2AgCl(s) → 2Ag(s) + Cl2_2​ (g)

    B.

    C(s) + O2_2​ (g) → CO2_2​ (g)

    C.

    CaO(s) + HO(l) → Ca(2_2​OH)2_2​ (aq)

    D.

    Zn(s) + CuSO4_4​ (aq) → ZnSO4_4​ (aq) + Cu(s)

    Correct option is D

    The correct answer is (D) Zn(s) + CuSO₄(aq) → ZnSO₄(aq) + Cu(s).
    Explanation:
    A displacement reaction is a type of chemical reaction in which one element displaces another from a compound. In the given reaction, zinc (Zn) displaces copper (Cu) from copper sulfate (CuSO₄), forming zinc sulfate (ZnSO₄) and copper metal (Cu).
    This is a typical example of a single displacement reaction.
    Information Booster:
    • Displacement Reaction: In a displacement reaction, a more reactive element displaces a less reactive element from its compound.

    • Example: In Zn(s) + CuSO₄(aq) → ZnSO₄(aq) + Cu(s), zinc (Zn), being more reactive than copper (Cu), replaces copper in copper sulfate to form zinc sulfate.

    Additional Information:

    • 2AgCl(s) → 2Ag(s) + Cl₂(g): This is a decomposition reaction. It involves the breakdown of silver chloride (AgCl) into silver (Ag) and chlorine gas (Cl₂).

    •  C(s) + O₂(g) → CO₂(g): This is a combustion reaction, where carbon reacts with oxygen to form carbon dioxide.

    • CaO(s) + H₂O(l) → Ca(OH)₂(aq): This is a combination reaction, where calcium oxide reacts with water to form calcium hydroxide.

    Free Tests

    Free
    Must Attempt

    RRB NTPC UG Level PYP (Held on 7 Aug 2025 S1)

    languageIcon English
    • pdpQsnIcon100 Questions
    • pdpsheetsIcon100 Marks
    • timerIcon90 Mins
    languageIcon English
    Free
    Must Attempt

    CBT-1 Full Mock Test 1

    languageIcon English
    • pdpQsnIcon100 Questions
    • pdpsheetsIcon100 Marks
    • timerIcon90 Mins
    languageIcon English
    Free
    Must Attempt

    RRB Group D Full Mock Test 1

    languageIcon English
    • pdpQsnIcon100 Questions
    • pdpsheetsIcon100 Marks
    • timerIcon90 Mins
    languageIcon English
    test-prime-package

    Access ‘RRB Technician Grade 3’ Mock Tests with

    • 60000+ Mocks and Previous Year Papers
    • Unlimited Re-Attempts
    • Personalised Report Card
    • 500% Refund on Final Selection
    • Largest Community
    students-icon
    446k+ students have already unlocked exclusive benefits with Test Prime!
    Our Plans
    Monthsup-arrow