Question

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)

Answer 1

Answer:

When acid and base react together, the salt and formed and heat is evolved. As heat is evolved, the temperature of the solution rapidly increases. Hence, option d is correct.

Acid+base ---> Salt + water.

Example:-

HCl + NaOH ---> NaCl + H₂O.

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Answer 2

Answer:

 Answer is  Option -(D) (i) and (iv)

Explanation:

When acid is mixed with a solution of base it results in neutralization reaction. Neutralization is an exothermic reaction which result in the formation salt.

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