EASY
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Beryllium does not form peroxides due to its very small size and high polarizing power of beryllium cation.

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Important Questions on Alkali and Alkaline Earth Metals

MEDIUM

Reaction of BeCl2 with LiAlH4 gives :

(A) AlCl3

(B) BeH2

(C) LiH

(D) LiCl

(E) BeAlH4

Choose the correct answer from options given below

EASY
On heating which of the following releases CO2 most easily?
EASY
The structures of beryllium chloride in the solid state and vapour phase, respectively, are:
MEDIUM
The pair of elements that form both oxides and nitrides, when burnt in air are
MEDIUM

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 Be2+but relatively large value of atomisation enthalpy.

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

EASY

Match list-I with list-II :

       
(a) Be (i) Treatment of cancer
(b) Mg (ii) Extraction of metals
(c) Ca (iii) Incendiary bombs and signals
(d) Ra (iv) Windows of X-ray tubes
    (v) Bearings for motor engines.

Choose the most appropriate answer, the option given below :

MEDIUM
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

Match List-I with List-II

  List-I   List-II
(a) Ca(OCl)2 (i) Antacid
(b) CaSO4·12H2O (ii) Cement
(c) CaO (iii) Bleach
(d) CaCO3 (iv) Plaster of paris

Choose the most appropriate answer from the

MEDIUM

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 Mg2+ 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 :

EASY
What happens when carbon dioxide gas is bubbled through lime water?
(i) In small amount
(ii) In excess
MEDIUM
The alkali metal that reacts with nitrogen directly to form nitride is
HARD
Give reasons for the following
A piece of burning magnesium ribbon continues to burn in SO2.
HARD
In what respects, does BeCl2 differ from the halides of group 2 elements?