JEE Main 202126 FebruaryEvening Shift

Exam: JEE Main
Year: 2021
Date: 26 February
Shift: Evening Shift
Subject: Chemistry
Chapter: Classification of Elements and Periodicity in Properties

JEE Main 2021 · 26 February · Evening Shift · Chemistry · Classification of Elements and Periodicity in Properties

Which pair of oxides is acidic in nature?

Options

A ${B}_{2}{O}_{3}, CaO$
B ${N}_{2}O, BaO$
C $CaO, {SiO}_{2}$
D ${B}_{2}{O}_{3}, {SiO}_{2}$

Correct answer

D. ${B}_{2}{O}_{3}, {SiO}_{2}$

Step-by-step solution

An oxide that combines with water to give an acid is termed as an acidic oxide. The oxide that gives a base in water is known as a basic oxide. An amphoteric solution is a substance that can chemically react as either acid or base.

${B}_{2}{O}_{3} and {SiO}_{2}$ both are oxides of non-metal and hence are acidic in nature.

\left\{ $\begin{array}{ll}CaO, BaO = BasicNature \\ {B}_{2}{O}_{3}, {SiO}_{2} = AcidicNature \\ {N}_{2}O = Neutraloxide\end{array}$ \right)

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