S-block Elements

S-block Elements 1

These MCQs are intended for checking your Chemistry subject, Chapter S-block Elements knowledge.

Solubility of alkali metal carbonates

Aqueous solution of Na2CO3 is basic in nature due to

Solution of sodium metal in liquid ammonia is strongly reducing due to the presence in solution of the following

Which salt of heating does not give brown coloured gas?

Which of the following are arranged in increasing order of solubilities?

Thermal stability of alkaline earth metal carbonates in decreasing order is

Which of the following substances can be used for drying non-acidic gas?

Alkali metals are strong reducing agents because

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

Which alkali metal has highest tendency for half reaction; M(g) → M+(aq) + 1e-?

Sequence of ionic mobility in aqueous solution is

Solubilities of group (II) carbonates, sulphates, phosphates decreases down the group, this is due to

Which of the following is strongest base?

Which of the following is an amphoteric hydroxide?

Which of the following elements have the greatest tendency to form covalent compounds?

RbO2 is

Which one is the most stable carbonate?

Which of the following mainly forms metal oxide on heating in air?

The alkali metal that reacts with nitrogen directly to form nitride is

Which of the following does not illustrate the anomalous properties of lithium?

During electrolysis of fused sodium chloride, the anodic reaction is

The solubility of hydroxides of alkaline earth metals increases down the group because

When CO2 is passed through solution of calcium hydroxide, which one of the following compounds is precipitated?

Which of the following gives CO2 on heating?

Which of the following has the highest solubility product?

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

The electronic configuration of metal M is 1s2, 2s2, 2p6, 3s1. The formula of its oxide would be

Which one of the following on heating will not give CO2?

A pair of metals which dissolves in sodium hydroxide solution is

Which of the following is most soluble in water?

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

When sodium reacts with excess of oxygen, oxidation number of oxygen changes from

Pair of amphoteric hydroxides is

Which of the following oxides is amphoteric?

Which of the following is paramagnetic?

The basic character of the oxides, MgO, SrO, K2O, NiO, Cs2O increases in the order

Which of the following hydroxide is least soluble in water?

Thermal stability of hydrides of first group elements follows the order

Correct order of solubilities of fluorides of alkaline earth metals is

The ionic character of alkali metal chlorides follows the order:

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