Prepare for NEET Chemistry The S-Block Elements with MCQs & PYQs on NEET.GUIDE. Get free practice, previous year questions, and expert solutions for alkali and alkaline earth metals.
During ATP hydrolysis coupled with phosphate transfer, which alkaline earth metal ion plays a crucial role in stabilizing the transition state?
Ca2+
Mg2+
Sr2+
Ba2+
Why is a suitable cofactor for ATP-utilizing enzymes in phosphate transfer reactions, unlike other alkaline earth metals like ?
Larger ionic radius
Smaller ionic radius
Higher charge density
Optimal ionic radius and charge density
A suspension of slaked lime in water is known as:
Lime water
Quick lime
Slaked lime
Milk of lime
What is the common name for the suspension formed when calcium hydroxide is mixed with water?
Limewater
Gypsum
Quick lime
Milk of lime
Which of the following is a suspension of in water?
Brine solution
Sugar solution
Milk of lime
Vinegar
Which of these is NOT a correct description of milk of lime?
a clear solution
a suspension of calcium hydroxide in water
basic in nature
contains calcium hydroxide
Which statement regarding beryllium's chemical properties is INCORRECT?
Beryllium forms amphoteric oxide.
Beryllium reacts readily with water.
Beryllium has a high polarizing power.
Beryllium forms stable complexes.
Beryllium's tendency to form covalent compounds is primarily due to:
Its large size and low ionization energy.
Its small size and high ionization energy.
Its low electronegativity.
Its metallic character.
Unlike typical alkaline earth metals, beryllium exhibits a significant covalent character in its compounds. This anomalous behavior is attributed to:
Low ionization energy.
Large atomic radius.
High charge density.
Low electronegativity.
Which of the following properties does NOT contribute to beryllium's preference for covalent bonding?
Small atomic radius
High ionization energy
High charge density
Low electronegativity
