JEE Chemistry 2025 Question with Solution

Given: The atomic numbers are $14$, $6$, $82$, and $50$ for some group 14 elements.

Find: The atomic number of the element with the lowest melting point.

From the solution, the elements are identified as:

• Carbon $\left(6\right)$
• Silicon $\left(14\right)$
• Tin $\left(50\right)$
• Lead $\left(82\right)$

The provided solution states that among the given elements, tin has the lowest melting point.

Therefore, the atomic number of the required element is $50$.

The correct option is D.

Given: Atomic numbers of some group 14 elements are listed.

Find: Which atomic number corresponds to the element with the lowest melting point.

Match each atomic number with its element:

• $6 \rightarrow$ Carbon
• $14 \rightarrow$ Silicon
• $50 \rightarrow$ Tin
• $82 \rightarrow$ Lead

the solution explains that the melting points generally decrease down group 14, and concludes that tin has the lowest melting point among the listed elements.

Hence, the required atomic number is $50$.

Therefore, the correct option is D.