Exams › NEET › Chemistry

Which one of the followings has maximum number of atoms?

1. 1 g of Mg(s) [Atomic mass of Mg = 24]
2. 1 g of O2(g) [Atomic mass of O = 16]
3. 1 g of Li(s) [Atomic mass of Li = 7]
4. 1 g of Ag(s) [Atomic mass of Ag = 108]

Correct answer: 1 g of Li(s) [Atomic mass of Li = 7]

Solution

To find the maximum number of atoms, calculate the moles for each substance (mass/atomic mass) and multiply by Avogadro's number. Li has the smallest atomic mass, so 1 g of Li contains the most moles and hence the most atoms.

Related NEET Chemistry questions

• Which of the following statements is/are correct? This question has multiple correct options
• Calculate the \( \% \) composition of Carbon in \( C O_{2} . \) Molar mass is 44.01
• Which of the following rules regarding the significant figures and calculations involving them is not correct?
• \( 16.8 \mathrm{g} \) of metal carbonate on thermal decomposition gave 8 g of metallic oxide and \( 8.8 \mathrm{g} \) of carbon dioxide. They follow:
• Calculate the percent composition of carbon in \( C_{6} H_{12} O_{6} \)
• In which case is number of molecules of water maximum?

⚔️ Practice NEET Chemistry free + battle 1v1 →