Chemistry - Complete s-block Question with Solution | TestHub

ChemistryComplete s-blocks-block IIAEasy2 minPYQ_2020

ChemistryEasysingle choice

$H_{2} O_{2}$ is prepared in laboratory by action of $H_{2} S O_{4}$ with

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Answer:

Solution:

Anhydrous $B a O_{2}$ gives an insoluble layer of $B a S O_{4}$ (on reaction with $H_{2} S O_{4}$ ), which further prevents the reaction with $H_{2} S O_{4}$ . This difficulty is removed by the use of hydrate of $B a O_{2}$ .
A. $N a_{2} O_{2} + H_{2} S O_{4} \to N a_{2} S O_{4} + H_{2} O_{2}$
C. $B a O_{2} . 8 H_{2} O + H_{2} S O_{4} \to B a S O_{4} + 8 H_{2} O + H_{2} O_{2}$ .

Stream:NTA_ABHYAS_NEETSubject:ChemistryTopic:Complete s-blockSubtopic:s-block IIA

⏱ 2mℹ️ Source: PYQ_2020

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