JAMB Chemistry Past Questions & Answers - Page 328

1,636.

Which of the following is a deliquescent compound?

A.

NaNO3

B.

CaCl2

C.

CuO

D.

Na2CO3.10H2O

View answer & explanation

Correct answer is B

  • Deliquescent substances are referred to known as those substances which absorbs moisture from the surrounding and dissolves themselves with the moisture or water to form a solution.
  • Examples are sodium hydroxide(NaOH), calcium chloride(CaCl2), potassium hydroxide(KOH), ammonium chloride(NH4Cl) , etc

    • 1,637.

    An effect of thermal pollution on water bodies is that the

    A.

    volume of water reduces

    B.

    volume of chemical waste increase

    C.

    level of oxides of nitrogen increase

    D.

    level of oxygen reduces

    View answer & explanation

    Correct answer is D

    No explanation has been provided for this answer.

    1,638.

    Which of the following is NOT an alkali?

    A.

    NH3

    B.

    Mg(OH)2

    C.

    Ca(OH)2

    D.

    NaOH

    View answer & explanation

    Correct answer is B

    No explanation has been provided for this answer.

    1,639.

    How many cations will be produced from a solution of potassium aluminium tetraoxosulphate (VI)?

    A.

    3

    B.

    4

    C.

    1

    D.

    2

    View answer & explanation

    Correct answer is D

    No explanation has been provided for this answer.

    1,640.

    CH3COOH(aq) + OH-(aq) ↔ CH3COO-(aq) + H2O(l)
    In the reaction above ,CH3COO-(aq) is

    A.

    conjugate base

    B.

    acid

    C.

    base

    D.

    conjugate acid

    View answer & explanation

    Correct answer is A

    No explanation has been provided for this answer.


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