Question

1. Fill in the blanks:
(a) A reaction in which both oxidation and
reduction takes place together is called
reaction
(b) Rate of reaction increases with the
in
concentration.
(c) In neutralization reaction, an acid reacts with
to form salt and water.
a
(d) A chemical reaction that releases heat with
products is called an
reaction.​

Answer 1

Answer:

1 • redox reactions

2•

3• base

4• exothermic reaction

Answer 2

Answer:

1. Oxidation is a losing of electrons and Reduction is a gaining of electrons. The reaction in which oxidation reduction taking place simultaneously are called as Redox reaction.
2. Increasing the concentration of one or more reactants will often increase the rate of reaction. This occurs because a higher concentration of a reactant will lead to more collisions of that reactant in a specific time period.
3. A neutralization reaction is when an acid and a base react to form water and a salt and involves the combination of H+ ions and OH- ions to generate water. The neutralization of a strong acid and strong base has a pH equal to 7.
4. An exothermic reaction is a "reaction for which the overall standard enthalpy change ΔH⚬ is negative." Exothermic reactions usually release heat and entail the replacement of weak bonds with stronger ones. Most of the spectacular chemical reactions that are demonstrated in classrooms are exothermic and exergonic.