Among the following, the correct statement is · ABC26IN0719
Subject: Inorganic Chemistry · Chapter: Main Group Elements · Topic: Main Group Elements – General · Exam: JAM 2005-2022 · Marks: 2 · Difficulty: Easy
Among the following, the correct statement is
(a)The density follows the order, $\mathrm{Cs}>\mathrm{Rb}>\mathrm{Li}>\mathrm{Na}$.
(b)The solubility in water follows the order, $\mathrm{Cs}_{2} \mathrm{CO}_{3}>\mathrm{K}_{2} \mathrm{CO}_{3}>\mathrm{Na}_{2} \mathrm{CO}_{3}>\mathrm{Li}_{2} \mathrm{CO}_{3}$.
(c)The first ionization potential follows the order, $\mathrm{Li}>\mathrm{K}>\mathrm{Na}>\mathrm{Cs}$.
(d)The melting point follows the order, $\mathrm{MgCl}_{2}>\mathrm{BeCl}_{2}>\mathrm{CaCl}_{2}>\mathrm{SrCl}_{2}$.
Answer
Answer: B ✓ checked by 4AB · confidence high
Explanation
Alkali carbonate solubility rises down the group: Cs₂CO₃ > K₂CO₃ > Na₂CO₃ > Li₂CO₃ (b).