EASY
Earn 100

Give reason why beryllium does not exhibit coordination numbers more than four.

Important Questions on The s-Block Elements

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The suspension of slaked lime in water is known as
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In context with beryllium, which one of the following statements is incorrect.
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On heating which of the following releases CO2 most easily?
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Assertion (A) : Beryllium and aluminium forms BeF42- and AIF63-
Reason (R) : Both Be2+ and Al3+ have almost same ionic radius
The correct option among the following is
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The structures of beryllium chloride in the solid state and vapour phase, respectively, are:
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The electronegativity of aluminum is similar to:
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Which one of the following alkaline earth metal sulphates has its hydration enthalpy greater than its lattice enthalpy?
MEDIUM

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
Chlorides of which metal are soluble in organic solvents:
MEDIUM
Which of the following statement is incorrect about beryllium?
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 :

EASY
Which of the following is an amphoteric hydroxide?
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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
The solubility of the alkaline earth's metal sulphates in water decreases in the sequence:
MEDIUM
The correct order of thermal stability of hydroxides is
EASY
Which among the following elements of group-2 exhibits anomalous properties?
EASY

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

EASY
The covalent alkaline earth metal halide X=Cl,Br,I is: