STANDARDChemistry-Periodic Table
STANDARD Chemistry Chemical Properties MCQ Question
Type: MCQ-conceptual-Medium
Which pair of elements has same chemical properties
A
13, 22
B
3, 11
C
4, 24
D
2, 4
Correct Answer
Option B
Detailed Explanation
The pair which belongs to same group i.e., in which both the elements have same outer electronic configuration has same chemical properties. 3 ⇒ 1s², 2s¹; 11 ⇒ 1s², 2s²2p⁶, 2s¹
Found an issue with this question?
Related Questions
More from Periodic Table
The order of size of metal ions is, Li⁺ < Na⁺ < K⁺ < Rb⁺ < Cs⁺ Since the hydration energy is inversely proportional to the size. So, the order of hydr...
2019Chemistry
Fluorine is the most electronegative element, it shows only (-1) state therefore fluorine will not undergo disproportionation.
2019Chemistry
Assertion: Ionisation enthalpy of beryllium is higher than that of boron. Reason: Across the period, from left to right, ionization enthalpy decrease...
2019Chemistry