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$Li$ has the following abnormal behaviour in its group:

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Important Questions on The s-Block Elements

EASY

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

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

EASY

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

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 and Beryllium

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

HARD

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

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 and Beryllium

Which of the following elements mostly form covalent compounds?

EASY

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

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 and Beryllium

Which of the following reaction is correct?

EASY

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.

MEDIUM

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

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

EASY

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

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

MEDIUM

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

Identify the ions which form hydrated chlorides from the following:

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

MEDIUM

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

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

MEDIUM

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

Alkali metals

(M)

dissolve in liquid

{NH}_{3}

to give

MEDIUM

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

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 and Beryllium

The electronegativity of aluminum is similar to:

EASY

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:

HARD

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

Consider the reaction sequence below:

Question Image

X is :

EASY

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

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

EASY

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

Identify the correct statement from the following.

EASY

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

The incorrect statement is:

Li has the following abnormal behaviour in its group:

Important Questions on The s-Block Elements

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$Li$ has the following abnormal behaviour in its group: