Question
Metals and ionic compounds have similarities and differences in their structure and properties.
Which row about metals and ionic compounds is correct?
Answer/Explanation
Ans:
A
Question
Caesium fluoride is an ionic compound. Which statements about caesium fluoride are correct?
1 It conducts electricity when solid.
2 It has a high melting point.
3 It is soluble in water.
4 It is highly volatile.
A. 1 and 2 B. 1 and 4 C. 2 and 3 D. 3 and 4
Answer/Explanation
Ans:
C
Question
Which statement about an ionic compound is not correct?
- It conducts electricity when dissolved in water.
- It has a high melting point due to strong attractive forces between ions.
- It has a regular lattice of oppositely charged ions in a ‘sea of electrons’.
- The ionic bonds are formed between metallic and non-metallic elements.
Answer/Explanation
Ans:
C
Question:
The equation for the reaction between barium chloride solution and dilute sulfuric acid is shown.
BaCl 2 + H2SO4 → BaSO4 + 2HCl
Which row shows the state symbols for this equation?
Answer/Explanation
Ans: A