group 1 and 2 compounds
- Created by: danni :)
- Created on: 29-05-13 10:46
Other questions in this quiz
2. Radium occurs below barium in group 2. On the basis of the trends in the chemistry of group 2, which of the following statements is true?
- Radium hydroxide is more soluble in water than calcium hydroxide
- Radium sulfate is more soluble in water than magnesium sulfate.
- Radium carbonate is more easily decomposed by heating than magnesium carbonate.
- Radium carbonate is very soluble in water.
3. Which of the following trends going down group 7 from chlorine to iodine is not true?
- their compounds with hydrogen are acids
- their anions of formula X− form precipitates with aqueous silver ions
- the strength of the halogen as an oxidising agent increases
- the first ionisation energy becomes less endothermic
4. A compound X gives a lilac flame. When its aqueous solution is added to silver nitrate solution a cream precipitate that does not dissolve in dilute ammonia but does dissolve in concentrated ammonia is produced. Compound X is
- potassium bromide
- calcium iodide
- potassium iodide
- calcium bromide
5. What is the colour of methyl orange at the end point of a titration in which an alkali is added to an acid?
- pale pink
- orange
- red
- yellow
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