S-Block Elements NEET Questions

Crude sodium chloride obtained by the crystallization of brine solution does not contain

Magnesium reacts with an element (X) to form an ionic compound. If the ground state electronic configuration of (X) is 1s² 2s² 2p³, the simplest formula for this compound is

In which of the following the hydration energy is higher than the lattice energy?

The alkali metals form salt-like hydrides by the direct synthesis at elevated temperature. The thermal stability of these hydrides decreases in which of the following orders?

The following metal ion activates many enzymes, participates in the oxidation of glucose to produce ATP, and with Na, is responsible for the transmission of nerve signals.

Solubility of the alkaline earth metal sulphates in water decreases in the sequence

Which one of the alkali metals, forms only, the normal oxide, M₂O on heating in air?

The correct order of increasing thermal stability of K₂CO₃, MgCO₃, CaCO₃ and BeCO₃ is

Which of the following statement is false?

Which of the following is an amphoteric hydroxide?

Which of the alkali metal chloride (MCl) forms its dihydrate salt (MCl.2H₂O) easily?

Which of the following represents calcium chlorite?

On heating which of the following releases CO₂ most easily?

All the following substances react with water. The pair that gives the same gaseous product is

Which of the following oxides is not expected to react with sodium hydroxide?

The compound A on heating gives a colorless gas and a residue that is dissolved in water to obtain B. Excess of CO₂ is bubbled through an aqueous solution of B, and C is formed which is recovered in the solid form. Solid C on gentle heating gives back A. The compound is

HCl was passed through a CaCl₂, MgCl₂, and NaCl solution. Which of the following compound(s) crystallize (s)?

The product obtained as a result of a reaction of nitrogen with CaC₂ is

Among CaH₂, BeH₂, BaH₂, the order of ionic character is

Which compound will show the highest lattice energy?

In the case of alkali metals, the covalent character decreases in the order

Enzymes that utilize ATP in phosphate transfer require an alkaline earth metal (M) as the cofactor. M is

Washing soda has a formula

In Castner-Kellner cell for production of sodium hydroxide

Bleaching powder is obtained by the action of chlorine gas and

Which of the following statements is false?

Property of the alkaline earth metals that increases with their atomic number

The suspension of slaked lime in water is known as

Which one of the following is present as an active ingredient in bleaching powder for bleaching action?

Which of the following is known as a fusion mixture?

The electronic configuration of calcium atoms may be written as

Which of the following compounds has the lowest melting point?

Compared with the alkaline earth metals, the alkali metals exhibit

Which of the following atoms will have the smallest size?

Which one of the following properties of alkali metals increases in magnitude as the atomic number rises?

Which of the following metal ions play an important role in muscle contraction?

The ease of adsorption of the hydrated alkali metal ions on an ion-exchange resin follows the order

Which of the following statements is incorrect?

Identify the correct statement.

Which of the following alkaline earth metal sulfates has a hydration enthalpy higher than the lattice enthalpy?

In which of the following processes, fused sodium hydroxide is electrolyzed at a 330 °C temperature for extraction of sodium?

The solubility in water of sulphate down the Be group is Be > Mg > Ca > Sr > Ba. This is due to

Which one of the following compounds is a peroxide?

Ionic mobility of which of the following alkali metal ions is lowest when the aqueous solution of their salts is put under an electric field?

In context with beryllium, which one of the following statements is incorrect?