Copper crystallises in fcc unit cell with cell edge length of 3.608×10^-8 cm. The density of copper is 8.92 g cm^-3. Calculate the atomic mass of copper.

NEET UG 2022 · Chemistry · Question 100

NEET 2022 Chemistry, question 100

Question 100 of the NEET 2022 paper (code R1) is a Chemistry question from The Solid State. Its idea, Density of a Unit Cell, was asked twice, in 2018 and 2022, across NEET 2017–2026. The NTA final answer key gives option 2.

Updated 2026-10-08

Q100 · Chemistry

3.608\times10^{-8}

1 65 u 2 63.1 u Official answer 3 31.55 u 4 60 u

Official answer: option 2 · NTA final answer key

Same idea

Density of a Unit Cell, in other papers

NEET asked this idea twice, in 2018 and 2022. The other question below.

2018 Q 89 Iron exhibits bcc structure at room temperature. Above 900°C, it transforms to fcc structure. The ratio of density of iron at room\dots Numerical \cdot Hard

Density of a Unit Cell: every question and how it was framed

The chapter

The Solid State in ten years of NEET

10 questions from 2017–2026, asked in 7 of 10 papers, about 0.9 a paper. The Solid State alone had 10.

Chapter analysis

Density of a Unit Cell, in other papers

The Solid State in ten years of NEET

The Solid State: questions per paper