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What happens when a solution of an acid ...

What happens when a solution of an acid is mixed with a solution of a base in a test tube ?
(i) The temperature of the solution increases
(ii) The temperature of the solution decreases
(iii) The temperature of the solution remains the same
(iv) Salt formation takes place

A

(i) only

B

(i) and (iii)

C

(ii) and (iii)

D

(i) and (iv)

Text Solution

Verified by Experts

The correct Answer is:
D
When a solution of acid is mixed with a solution of base in a test tube then the temperature of the solution increases and salt formation takes place. This is because the process is exothermic that is excess heat is produced by the acid-base reaction which is the net result of the processes of bond-breaking and bond-making.
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Knowledge Check

  • What happwns when a solution of an acid is mixed with a solution of a base in a test tube ? (i) The temperature of the solution increases (ii) The temperature of the solution decreases (iii) The tempersture of the solution remains the same (iv) Slat formation tekes place

    A
    (i) only
    B
    (i) and (ii)
    C
    (ii) and (iii)
    D
    (i) and (iv)

  • The increase in the temperature of the aqueous solution will result in its

    A
    Molarity to increase
    B
    Molarity to decrease
    C
    Mole fraction to increase
    D
    Mass % to increase

  • Increasing the temperature of an aqueous solution will cause

    A
    decrease in molality
    B
    decrease in molarity
    C
    decrease in mole fraction
    D
    decrease in % (ww).

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