List of top Chemistry Questions on GROUP 1 ELEMENTS

Thermal stability order of Group 1 hydroxides is:
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R:
Assertion A: Metallic sodium dissolved in liquid ammonia giving a deep blue solution which is paramagnetic.
Reasons R: The deep blue solution to the formation of amide.
In the light of the above statements, the correct answer from the options below:

In which form does \(BeCl_{2}\) exist in the solid state, vapor state and high temperature?
(1) Polymeric, Dimeric, Monomeric
(2) Dimeric, Polymeric, Monomeric
(3) Monomeric, Dimeric, Polymeric
(4) Polymeric, Monomeric, Dimeric

Ion having highest hydration enthalpy among the given alkaline earth metal ions is:

Read the following two statements
Statement I: Ionic radius of Li+ is greater than Mg++
Statement II: Lithium and magnesium can't form superoxide
The compound which does not exist.

Match List-I with List-II.

 List - I List - II
(a)Li(i)Absorbent for carbon dioxide
(b)Na(ii)Electrochemical cells
(c)KOH(iii)Coolant in fast breeder reactors
(d)Cs(iv)Photoelectric cell

Choose the correct answer from the options given below:

Choose the correct order of density of the alkali metals :
Which of the following statement is incorrect?

Choose the correct order of density of the alkali metals.

Among the following alkaline earth metal halides, one which is covalent and soluble in organic solvents is

HCl was passed through a solution of $CaCl_2$,$MgCl_2$ and $NaCl$. Which of the following compound(s) crystallise(s)?
Among the statements (A)-(D), the correct ones are : (a) Lithium has the highest hydration enthalpy among the alkali metals. (b) Lithium chloride is insoluble in pyridine. (c) Lithium cannot form ethynide upon its reaction with ethyne. (d) Both lithium and magnesium react slowly with $H_2O$ .
Enzymes that utilize ATP in phosphate transfer require an alkaline earth metal (M) as the cofactor. M is:
Which of the following is an amphoteric hydroxide ?
The correct order of hydration enthalpies of alkali metal ions is -
The metal that forms nitride by reacting directly with $N_2$ of air, is :
Sodium metal on dissolution in liquid ammonia gives a deep blue solution due to the formation of:
The amphoteric hydroxide is :
Which of the following oxides is most acidic in nature ?
Magnesium reacts with an element $(X)$ to form an ionic compound. If the ground state electronic configuration of $( X )$ is $1 s ^{2} 2 s ^{2} 2 p ^{3}$, the simplest formula for this compound is
In $KO_2$, the nature of oxygen species and the oxidation state of oxygen atom are, respectively :
The INCORRECT statement is :
Ionic mobility of which of the following alkali metal ions is lowest when aqueous solution of their salts are put under an electric field ?
Both lithium and magnesium display several similar properties due to the diagonal relationship; however, the one which is incorrect, is :