JEE Main 2019 — p Block Elements (Group 13 & 14) Question with Solution
JEE Main 2019 (09 Apr Shift 2)
Question
The correct statements among I to III regrading group 13 element oxides are,
(I) Boron trioxide is acidic.
(II) Oxides of aluminum and gallium are amphoteric.
(III) Oxides of indium and thallium are basic.
(I) Boron trioxide is acidic.
(II) Oxides of aluminum and gallium are amphoteric.
(III) Oxides of indium and thallium are basic.
Choose an option
Show full solutionCorrect option: C
Correct answer
C(I), (II) and (III)
Step-by-step explanation
All statements are correct
acidic , is an anhydride of Orthoboric Acid.
and are amphoteric, amphoteric oxides can react with acids as well as bases.
oxides of ln and Tl are basic.
As we move down the group basicity of oxides increases due to increase in metallic character of elements
acidic , is an anhydride of Orthoboric Acid.
and are amphoteric, amphoteric oxides can react with acids as well as bases.
oxides of ln and Tl are basic.
As we move down the group basicity of oxides increases due to increase in metallic character of elements
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This is a previous-year question from JEE Main 2019, covering the p Block Elements (Group 13 & 14) chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.