Question : Identify the correct statement concerning unsaturated hydrocarbons.

Option 1: Compounds of carbon having a single bond between their carbon atoms are called unsaturated compounds.

Option 2: Compounds of carbon having double bonds or triple bonds between their carbon atoms are called unsaturated compounds.

Option 3: Compounds of carbon having single bonds between their oxygen atoms are called unsaturated compounds.

Option 4: Compounds of carbon having double or triple bonds between their hydrogen atoms are called unsaturated compounds.

Question : Rutherford's  scattering experiment proved the presence of

Option 1: Atoms in all matter

Option 2: electrons in atoms

Option 3: neutrons in atoms

Option 4: nucleus in atoms

Question : If $a − b = 8$ and $ab = 9$, then the value of $a + b$ is ______.

Option 1: $\pm 9$

Option 2: $\pm 7$

Option 3: $\pm 8$

Option 4: $\pm 10$

Question : What type of force acts on a car moving around a curve?

Option 1: Centrifugal force

Option 2: Cohesive force

Option 3: Centripetal force

Option 4: Gravitational force

Question : Hydrogen peroxide effective sterilizing agent. Which one of the following product results when it readily loses active oxygen?

Option 1: Nascent Hydrogen

Option 2: Water

Option 3: Hydrogen

Option 4: Ozone