General
✓✗Atoms can exist as
- Atoms
- Molecules
- Ions
- Any of these
General
✓✗What is the molecular mass of sulphuric acid?
(atomic mass - H=1u, S=32u, O=16u)
(atomic mass - H=1u, S=32u, O=16u)
- 90 u
- 98 u
- 108 u
- 49 u
General
✓✗Molecular mass of one glucose molecule is
(atomic mass -C = 12u, H = 1u, O = 16u)
(atomic mass -C = 12u, H = 1u, O = 16u)
- 90 u
- 120 u
- 180 u
- 202 u
General
✓✗How many moles are 2 gms of water?
- 0.4 moles
- 0.22 moles
- 0.5 moles
- 0.89 moles
General
✓✗Which one of the following is a divalent anion?
- Oxide ion
- Carbonate ion
- Sulphate ion
- All are divalent anions
General
✓✗Which Indian Philosopher proposed that matter (Padarth) is made up of very small particles called “parmanu”?
- Pakudha Katyayama
- Maharshi Vishvamitra
- Maharshi Kanad
- Charak
General
✓✗Hydrogen monoxide is the scientific name of
- Hydrogen gas
- Water
- Hydrogen peroxide
- Laughing gas
General
✓✗Molecular mass of 
is
is- 2 u
- 16 u
- 18 u
- 34 u
General
✓✗Mass of 1 mole of Oxygen gas is
- 18 gms
- 10 gms
- 32 gms
- 8 gms
General
✓✗Which of the following is a drawback of Dalton’s atomic theory?
- Atom is indivisible
- All atoms of an element have exactly same mass
- Atoms of different elements can not have same mass
- All are drawbacks