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Periodic Table and Periodicity question

2021 · 24 Feb · Shift 1 · Q14

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Periodic Table and Periodicity
2021 · 24 Feb · Shift 1 · Q14

Periodic Table and Periodicity question

2021 · 24 Feb · Shift 1 · Q14

JEE MainChemistryPeriodic Table and PeriodicityNumerical+4 / −1

Number of amphoteric compounds among the following is

\underline{\hspace{2cm}}

. (A)

BeO

(B)

BaO

(C)

Be(OH)_2

(D)

Sr(OH)_2

Numerical answer

View written solutionFree

Correct answer: 2

Identify which compounds are amphoteric

Amphoteric substances react with both acids and bases.

We check each given compound:

(A) $BeO$ : Beryllium oxide is amphoteric.
(B) $BaO$ : Barium oxide is a basic oxide, not amphoteric.
(C) $Be(OH)_2$ : Beryllium hydroxide is amphoteric.
(D) $Sr(OH)_2$ : Strontium hydroxide is a strong base, not amphoteric.

Count the amphoteric compounds

The amphoteric compounds are:

$BeO$
$Be(OH)_2$

So, total number of amphoteric compounds is

$2$

Compare with stored correct answer

Stored correct answer = $2$

Our derived answer = $2$

They match.

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