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In the alkaline earth metals, the element forming predominantly covalent compound is

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Important Questions on The s-Block Elements

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Chemistry>Inorganic Chemistry>The s-Block Elements>Anomalous Properties of Lithium and Beryllium

Chlorides of which metal are soluble in organic solvents:

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Chemistry>Inorganic Chemistry>The s-Block Elements>Anomalous Properties of Lithium and Beryllium

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

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Chemistry>Inorganic Chemistry>The s-Block Elements>Anomalous Properties of Lithium and Beryllium

Which among the following elements of group-2 exhibits anomalous properties?

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Chemistry>Inorganic Chemistry>The s-Block Elements>Anomalous Properties of Lithium and Beryllium

The element whose salts cannot be detected by flame test is.

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Chemistry>Inorganic Chemistry>The s-Block Elements>Anomalous Properties of Lithium and Beryllium

Which of the following is an amphoteric hydroxide?

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Chemistry>Inorganic Chemistry>The s-Block Elements>Anomalous Properties of Lithium and Beryllium

Magnesium is burnt in the air to form

A

and

B

. When

B

is hydrolyzed,

C

and

D

are formed.

D

is the reactant in the manufacture of nitric acid by Ostwald's process. What is

C

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Chemistry>Inorganic Chemistry>The s-Block Elements>Anomalous Properties of Lithium and Beryllium

Given below are two statements:

Statement I : The chlorides of $Be$ and $Al$ have Cl-bridged structure. Both are soluble in organic solvents and act as Lewis bases.

Statement II: Hydroxides of $Be$ and $Al$ dissolve in excess alkali to give beryllate and aluminate ions. In the light of the above statements. Choose the correct answer from the options given below.

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Chemistry>Inorganic Chemistry>The s-Block Elements>Anomalous Properties of Lithium and Beryllium

Which one of the following oxide dissolves in both hydrochloric acid and sodium hydroxide?

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Chemistry>Inorganic Chemistry>The s-Block Elements>Anomalous Properties of Lithium and Beryllium

Which of the following statement is incorrect about beryllium?

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Chemistry>Inorganic Chemistry>The s-Block Elements>Anomalous Properties of Lithium and Beryllium

Among the statement (I – IV), the correct ones are:

(I) Be has smaller atomic radius compared to Mg.

(II) Be has higher ionization enthalpy than AI.

(III) Charge/radius ratio of Be is greater than that of Al.

(IV) Both Be and Al form mainly covalent compounds

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Chemistry>Inorganic Chemistry>The s-Block Elements>Anomalous Properties of Lithium and Beryllium

A piece of

Mg

ribbon is heated to redness in nitrogen atmosphere and the treated with water. The gas evolved is

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Chemistry>Inorganic Chemistry>The s-Block Elements>Anomalous Properties of Lithium and Beryllium

Consider the reaction sequence below:

Question Image

X is :

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Chemistry>Inorganic Chemistry>The s-Block Elements>Anomalous Properties of Lithium and Beryllium

The alkaline earth metal sulphate, which has its hydration enthalpy greater than its lattice energy is

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Chemistry>Inorganic Chemistry>The s-Block Elements>Anomalous Properties of Lithium and Beryllium

Magnesium powder burns in air to give

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Chemistry>Inorganic Chemistry>The s-Block Elements>Anomalous Properties of Lithium and Beryllium

A metal

' M'

readily gives

{MSO}_{4},

which is soluble in water. It forms its oxide

M 0

which is amphoteric. It forms an insoluble hydroxide

M (OH)_{2},

which is soluble in

NaOH

solution. The

M

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Chemistry>Inorganic Chemistry>The s-Block Elements>Anomalous Properties of Lithium and Beryllium

{BeCl}_{2}

reacts with

{LiAlH}_{4}

to give

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Chemistry>Inorganic Chemistry>The s-Block Elements>Anomalous Properties of Lithium and Beryllium

Powdered Beryllium burns in air to give

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Chemistry>Inorganic Chemistry>The s-Block Elements>Anomalous Properties of Lithium and Beryllium

Assertion (A) : Beryllium and aluminium forms

{BeF}_{4}^{2 -}

and

{AIF}_{6}^{3 -}

Reason (R) : Both

{Be}^{2 +}

and

{Al}^{3 +}

have almost same ionic radius
The correct option among the following is

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Chemistry>Inorganic Chemistry>The s-Block Elements>Anomalous Properties of Lithium and Beryllium

The covalent alkaline earth metal halide

(X = C l, B r, I)

is:

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Chemistry>Inorganic Chemistry>The s-Block Elements>Anomalous Properties of Lithium and Beryllium

The electronegativity of aluminum is similar to:

In the alkaline earth metals, the element forming predominantly covalent compound is

Important Questions on The s-Block Elements

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