EASY

Earn 100

Which among the following statements are correct?
A) BeO is amphoteric in nature in case of solid state.
B) LiHCO₃ is not found in solid state
C) K₂O₂ is diamagnetic but KO₂ is paramagnetic in nature.
D) Hydrated magnesium chloride on heating in dry air gives anhydrous MgCl_2.
E) AlCl₃ is soluble in excess of NaOH and gives sodium meta aluminate as product.
F) Anhydrous potassium nitrate on heating with potassium metal give potassium oxide and nitrogen gas.
G) Lithium chloride is highly insoluble in water

50% studentsanswered this correctly

Important Questions on The s-Block Elements

MEDIUM

Chemistry>Inorganic Chemistry>The s-Block Elements>Chemical Properties of Group 2 Elements

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:

EASY

Chemistry>Inorganic Chemistry>The s-Block Elements>Chemical Properties of Group 2 Elements

The metal that forms nitride by reacting directly with

N_{2}

of air is:

MEDIUM

Chemistry>Inorganic Chemistry>The s-Block Elements>Chemical Properties of Group 2 Elements

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>Chemical Properties of Group 2 Elements

Dihydrogen is liberated when water reacts with

MEDIUM

Chemistry>Inorganic Chemistry>The s-Block Elements>Chemical Properties of Group 2 Elements

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>Chemical Properties of Group 2 Elements

Sodium dissolves in liquid

{NH}_{3}

to give a deep blue solution. This is due to;

MEDIUM

Chemistry>Inorganic Chemistry>The s-Block Elements>Chemical Properties of Group 2 Elements

When sodium

(Na)

metal is dissolved in liquid ammonia

({NH}_{3})

, it imparts a blue colour to the solution. This blue coloration is due to:

MEDIUM

Chemistry>Inorganic Chemistry>The s-Block Elements>Chemical Properties of Group 2 Elements

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

EASY

Chemistry>Inorganic Chemistry>The s-Block Elements>Chemical Properties of Group 2 Elements

On combustion of

Li, Na

and

K

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

EASY

Chemistry>Inorganic Chemistry>The s-Block Elements>Chemical Properties of Group 2 Elements

The oxide of potassium that does not exist is

EASY

Chemistry>Inorganic Chemistry>The s-Block Elements>Chemical Properties of Group 2 Elements

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>Chemical Properties of Group 2 Elements

Magnesium powder burns in air to give

MEDIUM

Chemistry>Inorganic Chemistry>The s-Block Elements>Chemical Properties of Group 2 Elements

A s-block element (M) reacts with oxygen to form an oxide of the formula

{MO}_{2}

. The oxide is pale yellow in colour and paramagnetic. The element

(M)

is:

EASY

Chemistry>Inorganic Chemistry>The s-Block Elements>Chemical Properties of Group 2 Elements

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

MEDIUM

Chemistry>Inorganic Chemistry>The s-Block Elements>Chemical Properties of Group 2 Elements

Assertion (A):

K, Rb

and

Cs

form superoxides
Reason (R): The stability of superoxides increases form

K

Cs

due to decrease in lattice energy.

MEDIUM

Chemistry>Inorganic Chemistry>The s-Block Elements>Chemical Properties of Group 2 Elements

Which one of the following options is correct pertaining to the below transformations?

Na + {NH}_{3} (l) ⟶

Coloured solution

\overset{on standing}{⟶} X + Y

HARD

Chemistry>Inorganic Chemistry>The s-Block Elements>Chemical Properties of Group 2 Elements

Powdered Beryllium burns in air to give

EASY

Chemistry>Inorganic Chemistry>The s-Block Elements>Chemical Properties of Group 2 Elements

The order of stability for the super oxides is

MEDIUM

Chemistry>Inorganic Chemistry>The s-Block Elements>Chemical Properties of Group 2 Elements

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

EASY

Chemistry>Inorganic Chemistry>The s-Block Elements>Chemical Properties of Group 2 Elements

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

Important Questions on The s-Block Elements

Learn and Prepare for any exam you want !