s-block – JEE Advanced Previous Year Questions with Solutions
By Team eSaral
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September 1, 2019
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Chemistry

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JEE Advanced Previous Year Questions of Chemistry with Solutions are available at eSaral. Practicing JEE Advanced Previous Year Papers Questions of Chemistry will help the JEE aspirants in realizing the question pattern as well as help in analyzing weak & strong areas.   Simulator   Previous Years JEE Advance Questions
Q. The compound(s) formed upon combustion of sodium metal in excess air is (are) (A) $\mathrm{Na}_{2} \mathrm{O}_{2}$ (B) $\mathrm{Na}_{2} \mathrm{O}$ (C) $\mathrm{NaO}_{2}$ (D) $\mathrm{NaOH}$ [JEE 2009]

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Sol. (A,B) Sodium does not form peroxide on reaction with excess air.
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