Bookback questions: choose the correct answer — task. Science State Board, Class 10.

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1.

Which of the following has the smallest mass?

\(6.023\times10^{23}\) atoms of \(He\)
\(1\) atom of \(He\)
\(2\) \(g\) of \(He\)
\(1\) \(mole\) atoms of \(He\)

2.

The gram molecular mass of sulphur molecule is

\(17\) \(g\)
\(16\) \(g\)
\(32\) \(g\)
\(18\) \(g\)

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