Question : Isobars have ______.

Option 1: Same mass number but different atomic numbers

Option 2: Different mass numbers but same atomic numbers

Option 3: Same mass and atomic numbers

Option 4: Different mass and atomic numbers

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 : Which among the following will be a negative ion?

Option 1: If it has more electron than protons

Option 2: If it has more electrons than neutrons

Option 3: If it has more protons than electrons

Option 4: If it has more protons than neutrons

Question : Chemical properties of isotopes

Option 1: must be same

Option 2: must be different

Option 3: need not be the same

Option 4: need not be different