Science: Class IX>Chapter 3 - Atoms and Molecules>Questions

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Jharkhand Board Science Solutions for Exercise - Questions

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MEDIUM

9th Jharkhand Board

IMPORTANT

Science: Class IX>Chapter 3 - Atoms and Molecules>Questions>Q 1

If one mole of carbon atoms weighs $12$ gram, what is the mass (in grams) of $1$ atom of carbon? (Avogadro number $= 6.022 \times 10^{23}$ ).

MEDIUM

9th Jharkhand Board

IMPORTANT

Science: Class IX>Chapter 3 - Atoms and Molecules>Questions>Q 2

Which has more number of atoms, $100$ grams of sodium or $100$ grams of iron (Given, atomic mass of $N a = 23 u, F e = 56 u$ , Avogadro number $= 6.022 \times 10^{23}$ )?