NEET UG CHEMISTRY MCQ: SURFACE CHEMISTRY

1 Hard

1 of 1

Application +4 | -1

10 \%

sites of catalyst bed have adsorbed by

\mathrm{H}_2

. On heating

\mathrm{H}_2

gas is evolved from sites and collected at

0.03 \mathrm{~atm}

and

300 \mathrm{~K}

in a small vessel of

2.46 \mathrm{~cm}^3

.
No. of sites available is

5.4 \times 10^{16}

per

\mathrm{cm}^2

and surface area is

1000 \mathrm{~cm}^2

. Find out the no. of surface sites occupied per molecule of

\mathrm{H}_2

\left(\right.

Given

\mathrm{N}_{\mathrm{A}}=6 \times 10^{23}

)

View answer and explanation

Correct option: A

Option A (3) is correct because it represents the number of surface sites occupied per molecule of H2, calculated from the given data.

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