S-block Elements

S-block Elements 1

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

Which of the following hydroxide is least soluble in water?

Which salt of heating does not give brown coloured gas?

Which one is the most stable carbonate?

Aqueous solution of Na2CO3 is basic in nature due to

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

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

During electrolysis of fused sodium chloride, the anodic reaction is

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

Pair of amphoteric hydroxides is

RbO2 is

Which of the following is strongest base?

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

Alkali metals are strong reducing agents because

Thermal stability of hydrides of first group elements follows the order

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

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

Solubility of alkali metal carbonates

Which of the following oxides is amphoteric?

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

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

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

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

A pair of metals which dissolves in sodium hydroxide solution is

The ionic character of alkali metal chlorides follows the order:

Which of the following has the highest solubility product?

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

Correct order of solubilities of fluorides of alkaline earth metals is

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

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

Thermal stability of alkaline earth metal carbonates in decreasing order is

Which of the following is most soluble in water?

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

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

Which of the following is paramagnetic?

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

Which of the following is an amphoteric hydroxide?

Sequence of ionic mobility in aqueous solution is

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

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

Which of the following gives CO2 on heating?

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