NEET UG CHEMISTRY MCQ: S-BLOCK ELEMENTS

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Alkali metal superoxides are obtained by the reaction of

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Correct option: A

Oxygen with alkali metal in liquid ammonia

Option A (Oxygen with alkali metal in liquid ammonia) is correct because alkali metal superoxides are obtained by reacting alkali metals with excess oxygen in liquid ammonia.

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Which of the following exists in polymeric form? If 5 moles of

\mathrm{BaCl}_{2}

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\mathrm{Na}_{3} \mathrm{PO}_{4}

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\mathrm{Ba}_{3}\left(\mathrm{PO}_{4}\right)_{2}

formed is ________ (Nearest integer) Pearl ash and caustic potash are chemically: When sodium chloride solution is electrolysed, the gas that is liberated at the cathode is What is product of reaction :

\underset {\text{(dilute)}}{Ba(OH)_2}+H_2O_2+ClO_2 \longrightarrow

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