Chemistry - Complete s-block Question with Solution | TestHub
ChemistryComplete s-blocks-block IAMedium2 minQB
ChemistryMediumsingle choice
Which of the following statement is CORRECT
Options:
Answer:
A
Solution:
Explain the Question: Identify the correct statement.
Concept: Properties of alkali metals & complex formation.
Solution:
In alkali metals hardness decreases down the group due to decrease in metallic bond strength. Li is harder than other alkali metals due to small size and high lattice energy.
In Solvay process, NH3 is recovered by heating NH4Cl with Ca(OH)2 , not with water alone.
Na2CO3 is called soda ash, not pearl ash (which is K2CO3 ).
Be2+ and Al3+ form strong complexes like [BeF4 ]2- and [AlF6 ]3- due to small size and high charge.
Final Answer: Option (A)
Stream:JEESubject:ChemistryTopic:Complete s-blockSubtopic:s-block IA
⏱ 2mℹ️ Source: QB
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