Question : Two gaseous molecules can react only when they have the same _________.

Option 1: Free energy

Option 2: Entropy

Option 3: Energy

Option 4: Orientation/steric factor

Question : If A1 and A2 are two distinct prime numbers, then what is the highest common factor of A1 and A2?

Option 1: 3

Option 2: 1

Option 3: 5

Option 4: 2

Question : What type of energy conversion takes place in a battery?

Option 1: Chemical energy into light energy

Option 2: Chemical energy into electrical energy

Option 3: Mechanical energy into chemical energy

Option 4: Chemical energy into sound energy

Question : In a water-lifting electric pump, we convert

Option 1: electrical energy into potential energy

Option 2: kinetic energy into electrical energy

Option 3: kinetic energy into potential energy

Option 4: electrical energy into kinetic energy

Question : Two cylinders have their heights in the ratio 1 : 2 and their radii in the ratio 2 : 1. What is the ratio of their volumes?

Option 1: 3 : 1

Option 2: 1 : 3

Option 3: 2 : 1

Option 4: 1 : 2

Question : The ratio of the areas of two squares one having double its diagonal than the other is:

Option 1: 3 : 2

Option 2: 2 : 1

Option 3: 4 : 1

Option 4: 3 : 1