EASY

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In the periodic table, the relations between $Li - Mg, Be - Al, B - Si$ are called diagonal relationship. These pairs of elements show similarities in their physical and chemical properties. The factor responsible for this is

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Important Questions on The s-Block Elements

MEDIUM

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

Identify the ions which form hydrated chlorides from the following:

$a)$ ${Ba}^{2 +}$
$b)$ ${Li}^{+}$
$c)$ ${Sr}^{2 +}$
$d)$ ${Cs}^{+}$
$e)$ ${Mg}^{2 +}$
$f)$ ${Rb}^{+}$
$g)$ ${Ca}^{2 +}$

EASY

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

Ionic mobility of which of the following alkali metal ions is lowest when aqueous solution of their salt are put under an electric field?

MEDIUM

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

Which among the following alkali metal chloride crystallizes in form of hydrate?

EASY

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

An element

A

of group

1

shows similarity to an element

B

belonging to group

2

. If

A

has maximum hydration enthalpy in group

1

then

B

MEDIUM

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

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_{2} O

EASY

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

From the given pairs of elements, the correct set of elements that does not possess diagonal relationship is;

HARD

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

A metal

M

reacts with nitrogen gas to afford

M_{3} N

M_{3} N

on heating at high temperature gives back

M

and on reaction with water produces a gas

B

. Gas

B

reacts with an aqueous solution of

{CuSO}_{4}

to form a deep blue compound.

M and B

respectively are

EASY

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

The covalent alkaline earth metal halide

(X = C l, B r, I)

is:

EASY

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

Two elements

A

and

B

have similar chemical properties. They don't form solid hydrogencarbonates, but react with nitrogen to form nitrides.

A

and

B

, respectively, are :

EASY

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

Identify the correct statement from the following.

EASY

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

On heating,

{LiNO}_{3}

gives how many compounds among the following?

{Li}_{2} O, N_{2}, O_{2}, {LiNO}_{2}, {NO}_{2}

EASY

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

The incorrect statement is:

EASY

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

Which of the following reaction is correct?

MEDIUM

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

Alkali metals

(M)

dissolve in liquid

{NH}_{3}

to give

EASY

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

The electronegativity of aluminum is similar to:

MEDIUM

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

In the following sets of reactants which two sets best exhibit the amphoteric character of Al₂O₃ . xH₂O ?

\begin{matrix} Set I & {Al}_{2} O_{3} \cdot {xH}_{2} O_{(s)} + {OH}_{(aq)}^{-} \\ Set II & {Al}_{2} O_{3} x \cdot H_{2} O_{(s)} + H_{2} O_{(l)} \\ Set III & {Al}_{2} O_{3} x \cdot H_{2} O_{(s)} + H_{(aq)}^{+} \\ Set IV & {Al}_{2} O_{3} \cdot {xH}_{2} O_{(s)} + {NH}_{3 (aq)} \end{matrix}

HARD

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

Among the following, the correct order of acidity is:

EASY

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

Which of the following elements mostly form covalent compounds?

MEDIUM

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

Which of following elements does not form amide when reacted with ammonia?

EASY

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

Both lithium and magnesium display several similar properties due to the diagonal relationship; however, the one which is incorrect is:

In the periodic table, the relations between Li-Mg, Be-Al, B-Si are called diagonal relationship. These pairs of elements show similarities in their physical and chemical properties. The factor responsible for this is

Important Questions on The s-Block Elements

Learn and Prepare for any exam you want !

In the periodic table, the relations between $Li - Mg, Be - Al, B - Si$ are called diagonal relationship. These pairs of elements show similarities in their physical and chemical properties. The factor responsible for this is