Question : Which of the following is a characteristic of an exothermic reaction:

Option 1: Release of heat

Option 2: Absorption of heat

Option 3: Doesn't involve any change in temperature

Option 4: None of the options is correct

Question : The reaction between an acid and a base is known as _________.

Option 1: condensation reaction

Option 2: substitution reaction

Option 3: oxidation reaction

Option 4: neutralisation reaction

Question : The reaction between an acid and a base to give a salt and water is called______.

Option 1: neutralisation reaction

Option 2: combination reaction

Option 3: displacement reaction

Option 4: decomposition reaction

Question : The working of a dry cell is based on

Option 1: Decomposition reaction

Option 2: Spontaneous oxidation-reduction reaction

Option 3: Combination reaction

Option 4: Electrolysis

Question : Directions: Which one of the given responses will be a meaningful order of the following?
1. Key  2. Door  3. Lock  4. Room

Option 1: 4, 2, 1, 3

Option 2: 1, 2, 3, 4

Option 3: 1, 3, 2, 4

Option 4: 1, 2, 4, 3