Chemistry
The common name of the ore of iron is:
- Haematite
- Calamine
- Cryolite
- Hydrated aluminum oxide
Related Questions
A hydrocarbon with double bond is:
- Acetylene
- Ethylene
- Ethane
- Methane
The hydroxide soluble in excess of sodium hydroxide solution but not in excess of ammonium hydroxide solution is:
- Calcium hydroxide
- Lead hydroxide
- Magnesium hydroxide
- Ferrous hydroxide
—C—H group is the functional group of:
- 2-butylene
- Pentanal
- Acetic acid
- Ethyl alcohol
(a) Give a difference between ionization and electrolytic dissociation.
(b) 112 mL of a gaseous fluoride of a non-metal Phosphorus at S.T.P. has a mass of 0.63 g. Calculate the relative molecular mass of the fluoride.
(c) If this compound given in (b) has only one atom of Phosphorus, then determine its formula. (At. Wt. P=31, F=19)