Class 11

10. s-Block elements question bank (Chemistry)

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Q1.

Which of the following statements is false for alkali metals?

(A)
\(\text{Lithium is the strongest reducing agent.}\)
(B)
\(\text{Na is amphoteric in nature.}\)
(C)
\(\text{Li}^+\) \(\text{is exceptionally small.}\)
(D)
\(\text{All alkali metals give blue solution in liq. ammonia.}\)
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Q2.

The low solubility of LiF and that of CsI in water are respectively due to which of the properties of the alkali metal ions?

(A)
\(\text{Higher hydration enthalpy of Li}^+, \text{higher lattice enthalpy of Cs}^+.\)
(B)
\(\text{Smaller hydration enthalpy of Li}^+, \text{higher lattice enthalpy of Cs}^+.\)
(C)
\(\text{Smaller lattice enthalpy of Li}^+, \text{higher hydration enthalpy of Cs}^+.\)
(D)
\(\text{Smaller hydration enthalpy of Li}^+, \text{smaller lattice enthalpy of Cs}^+.\)
(E)
\(\text{Higher lattice enthalpy of Li}^+, \text{smaller hydration enthalpy of Cs}^+.\)
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