EASY
Earn 100

The hydration enthalpy of alkaline earth metal ions is higher than those of metal ions.

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Important Questions on The s-Block Elements

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 ?
MEDIUM
The alkaline earth metal nitrate that does not crystallise with molecules is:
EASY
The pair of s-block metals, which gives crimson colour to the flame is:
EASY
Ion having highest hydration enthalpy among the given alkaline earth metal ions is:
EASY
A piece of Mg ribbon is heated to redness in nitrogen atmosphere and the treated with water. The gas evolved is
EASY
Which one of the following alkaline earth metal ions has the highest ionic mobility in its aqueous solution?
EASY
The ion having the highest mobility in aqueous solution is
EASY
The element whose salts cannot be detected by flame test is.
EASY
s-block element which cannot be qualitatively confirmed by the flame test is
HARD
The second ionization enthalpy of an alkaline earth metal is higher than its first ionization energy. Why is it so?
HARD
Why are alkaline earth metals good reducing agents?
EASY
Which element among group-2 metals has the highest melting point?
MEDIUM

Represent the union of two sets by Venn diagram for each of the following.

X={x | x is a prime number between 80 and 100}

Y={y | y is an odd number between 90 and 100}

EASY
The activity of alkaline earth metals as reducing agent
EASY
Beryllium and magnesium do not give colour to flame whereas other alkaline earth metals do so. Why?
MEDIUM
Explain why alkaline earth metals are harder than alkali metals?
MEDIUM
Beryllium and magnesium do not give colour to flame whereas other alkaline earth metals do so. Why?