Identify the correct statements about alkali metals
A. The order of standard reduction potential \(\left( M ^{+} \mid M \right)\)for alkali metal ions is \(Na > Rb > Li\)
B. \(CsI\)is highly soluble in water.
C. Lithium carbonate is highly stable to heat.
D. Potassium dissolved in concentrated liquid ammonia is blue in colour and paramagnetic.
E. All the alkali metal hydrides are ionic solids.
Choose the correct answer from the options given below:
Identify the correct statements about alkali metals
A. The order of standard reduction potential \(\left( M ^{+} \mid M \right)\)for alkali metal ions is \(Na > Rb > Li\)
B. \(CsI\)is highly soluble in water.
C. Lithium carbonate is highly stable to heat.
D. Potassium dissolved in concentrated liquid ammonia is blue in colour and paramagnetic.
E. All the alkali metal hydrides are ionic solids.
Choose the correct answer from the options given below:
Show Hint
Reduction potential and solubility depend on ion size and hydration energy. Alkali metal hydrides are ionic due to electrostatic interactions.
- C and E only
- A and E only
- A, B, D only
- A, B and E only
The Correct Option is B
Solution and Explanation
To determine the correct statements about alkali metals, we must analyze each statement based on our knowledge of chemistry and alkali metals' properties.
- Statement A: "The order of standard reduction potential \(\left( M^{+} \mid M \right)\)for alkali metal ions is \(Na > Rb > Li\)."
- Statement B: "CsI is highly soluble in water."
- Statement C: "Lithium carbonate is highly stable to heat."
- Statement D: "Potassium dissolved in concentrated liquid ammonia is blue in colour and paramagnetic."
- Statement E: "All the alkali metal hydrides are ionic solids."
Based on the analysis above, the correct statements are A and E. Therefore, the correct answer is:
A and E only
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