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The activity of alkaline earth metals as reducing agents

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Important Questions on The s-Block Elements

MEDIUM

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

Given below are two statements, one is labelled as

Assertion A and the other is labelled as Reason R.

Assertion A : Beryllium has less negative value of reduction potential compared to the other alkaline earth metals

Reason R : Beryllium has large hydration energy due to small size of ${Be}^{2 +}$ but relatively large value of atomisation enthalpy.

In the light of the above statements, choose the most appropriate answer from the options given below.

MEDIUM

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

Reaction of ${BeCl}_{2}$ with ${LiAlH}_{4}$ gives :

(A) ${AlCl}_{3}$

(B) ${BeH}_{2}$

(D) $LiCl$

(E) ${BeAlH}_{4}$

Choose the correct answer from options given below

MEDIUM

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

The pair of elements that form both oxides and nitrides, when burnt in air are

EASY

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

The metal that forms nitride by reacting directly with

N_{2}

of air is:

EASY

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

A piece of

Mg

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

MEDIUM

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

A metal on combustion in excess air forms

X

X

upon hydrolysis with water yields

H_{2} O_{2}

and

O_{2}

along with another product. The metal is:

MEDIUM

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

The alkaline earth metal nitrate that does not crystallise with molecules is:

EASY

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

On combustion of

Li, Na

and

K

in excess of air, the major oxides formed, respectively, are:

MEDIUM

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

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

HARD

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

Powdered Beryllium burns in air to give

MEDIUM

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

Sodium metal on dissolution in liquid ammonia gives a deep blue solution due to the formation of:

MEDIUM

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

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

EASY

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

The main oxides formed on combustion of Li, Na and K in excess of air are respectively:

MEDIUM

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

Given below are two statements :

Statement I : Lithium and Magnesium do not form superoxide

Statement II : The ionic radius of ${Li}^{+}$ is larger than ionic radius of ${Mg}^{2 +}$ In the light of the above statements, choose the most appropriate answer from the questions given below :

In the light of the above statements, choose the most appropriate answer from the questions given below :

MEDIUM

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

Name a nitrate that does not yield corresponding metal oxide, nitrogen dioxide on heating.

EASY

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

The order of stability for the super oxides is

EASY

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

The oxide of potassium that does not exist is

MEDIUM

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

{BeCl}_{2}

reacts with

{LiAlH}_{4}

to give

EASY

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

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

MEDIUM

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

Magnesium powder burns in air to give

The activity of alkaline earth metals as reducing agents

Important Questions on The s-Block Elements

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