MEDIUM
Earn 100

Consider the following statements:

I.  Thermal stabilities of carbonates of alkaline earth metals increases down the group.
II.  Except LiOH, hydroxides of all other alkali metals are thermally stable.
III.  Li2CO3 is thermally stable whereas, other carbonates of the group are thermally unstable.
IV.  Solubilities of hydroxides of alkaline earth metals increases down the group.
Pick out the correct of the following:

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Important Questions on The s-Block Elements

EASY
The correct sequence of thermal stability of the following carbonates is:
EASY
The structures of beryllium chloride in the solid state and vapour phase, respectively, are:
EASY

Match the following compounds (Column-I) with their uses (Column-II)

S. No. Column-I S.No. Column-II
(I) CaOH2 (A) casts of statues
(II) NaCl (B) white wash
(III) CaSO4·12H2O (C) antacid
(IV) CaCO3 (D) washing soda preparation

 

EASY
The thermal stability of alkaline earth metal carbonates MgCO3, CaCO3, SrCO3 and BaCO3 , follows the order
MEDIUM
An alkaline earth metal 'M' readily forms water soluble sulphate and water insoluble hydroxide. Its oxide MO is very stable to heat and does not have rock-salt structure. M is
EASY
The correct order of the solubility of alkaline-earth metal sulphates in water is:
MEDIUM
Which of the following property of alkaline earth metal increases with their atomic number?
MEDIUM
The solubility of the alkaline earth's metal sulphates in water decreases in the sequence:
EASY
Among the sulphates of alkaline earth metals, the solubilities of BeSO4  and MgSO4 in water, respectively, are :
EASY
Which one of the following alkaline earth metal sulphates has its hydration enthalpy greater than its lattice enthalpy?
EASY
What is the role of gypsum, CaSO4.2H2O in setting of cement? Identify the correct option from the following:
MEDIUM
Sodium sulphate is soluble in water but barium sulphate is insoluble because