Which of the following elements belongs to the s-block of the periodic table?
Practice 2easy
What is the electron configuration of Magnesium (Mg)?
Practice 3easy
Which property correctly describes the s-block elements?
Practice 4easy
Which of the following represents the correct order of increasing atomic radius in the s-block?
Practice 5easy
When calcium (Ca) reacts with oxygen (O₂), the product formed is:
Practice 6medium
Which of the following is the correct order of ionization enthalpy for Group 1 elements (alkali metals)?
Practice 7medium
When sodium is heated in excess oxygen, the primary product formed is:
Practice 8medium
The solubility of alkaline earth metal hydroxides decreases down the group. The correct order is:
Practice 9medium
Potassium superoxide (KO₂) reacts with CO₂ and H₂O in the following manner. What are the products?
Practice 10medium
Which alkaline earth metal forms a nitride when heated in nitrogen atmosphere?
Practice 11medium
The hydration enthalpy of lithium is higher than that of sodium. This is because:
Practice 12medium
When calcium carbide reacts with water, the main organic product formed is:
Practice 13medium
Among the alkali metals, which element shows the most anomalous behavior and why?
Practice 14hard
When sodium metal is heated in excess oxygen, the primary product formed is:
Practice 15hard
The solubility of alkaline earth metal hydroxides in water decreases down the group. Which of the following correctly orders these hydroxides by solubility (highest to lowest)?
Practice 16hard
Which of the following statements about the diagonal relationship between lithium and magnesium is correct?