General
✓✗Ionic compounds are formed by the combination between
- 2 metals
- 2 non-metals
- 1 metal & 1 non-metal
- Any of these
General
✓✗Atom of which element is smallest?
- Hydrogen
- Helium
- Carbon
- Oxygen
General
✓✗Latin name of sodium is
- Kalium
- Natrium
- Stannum
- Sodium
General
✓✗Which one of the following will have maximum number of molecules?
4 g of methane or 4 g of oxygen gas or 4 g of water.
4 g of methane or 4 g of oxygen gas or 4 g of water.
- Water
- Methane
- Oxygen
- All have equal
General
✓✗Which one of the following is not a postulate of Daltons atomic theory?
- All matter is made up of tiny particles called atoms
- Atom can be divided in to 3 sub atomic particles, electrons, protons and neutrons
- Atoms can neither be created nor be destroyed
- All atoms of an element are identical in all respects
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
✓✗Molecular mass of methane is
- 12 u
- 16 u
- 20 u
- 34 u
General
✓✗How many moles of oxygen atoms are present in 
?
?- 2 moles
- 3 moles
- 1.5 moles
- Cannot be predicted from the formula
General
✓✗The statement “Matter can neither be created nor be destroyed” can be justified by which one of the following law
- Law of conservation of mass
- Law of constant proportion
- Law of multiple proportion
- None of these
General
✓✗Which one of the following is trivalent cation?
- Aluminium ion
- Ferric ion
- Both ‘a’ and ‘b’
- None of these