EASY

Earn 100

Which is not true in respect of beryllium chemistry?

22.61% studentsanswered this correctly

Important Questions on The s-Block Elements

EASY

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

The electronegativity of aluminum is similar to:

MEDIUM

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.

EASY

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

The incorrect statement is:

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.

EASY

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

Which of the following is an amphoteric hydroxide?

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

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 and Beryllium

Magnesium powder burns in air to give

MEDIUM

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

Which of the following statement is incorrect about beryllium?

EASY

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

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?

HARD

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

Consider the reaction sequence below:

X is :

EASY

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

Choose the correct statement(s):
A. Beryllium oxide is purely acidic in nature.
B. Beryllium carbonate is kept in the atmosphere of

{CO}_{2}

.
C. Beryllium sulphate is readily soluble in water.
D. Beryllium shows anomalous behavior.
Choose the correct answer from the options given below:

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

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

EASY

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

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

MEDIUM

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

EASY

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

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:

EASY

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

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

Which is not true in respect of beryllium chemistry?

Important Questions on The s-Block Elements

Learn and Prepare for any exam you want !