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 :

a - iv , b - iii , c - ii , d - i

a - iv , b - iii , c - i , d - ii

a - iii , b - iv , c - v , d - ii

a - iii , b - iv , c - ii , d - v

Consider the following ionization enthalpies of two elements 'A' and 'B'. Element Ionization enthalphy kJ / mol 1 st 2 nd 3 rd A 899 1757 14847 B 737 1450 7731 Which of the following statements is correct?

Both 'A' and 'B' belong to group-2 where 'B' comes below 'A'.

Both 'A' and 'B' belong to group-1 where 'A' comes below 'B'.

Both 'A' and 'B' belong to group-2 where 'A' comes below 'B'.

Both 'A' and 'B' belong to group-1 where 'B' comes below 'A'.

Match List - I with List - II List - I List - II (a) Ca ( OCl ) 2 (i) Antacid (b) CaSO 4 · 1 2 H 2 O (ii) Cement (c) CaO (iii) Bleach (d) CaCO 3 (iv) Plaster of paris Choose the most appropriate answer from the

a − iii , b − iv , c − ii , d − i

a − i , b − iv , c − iii , d − ii

a − iii , b − ii , c − iv , d − i

a - iii , b − ii , c - i , d - iv

Match List-I with List-II List - I (Elements) List - II (Properties) (a) Ba ( i ) Organic solvent soluble compounds (b) Ca ( ii ) Outer electronic configuration 6 s 2 (c) Li ( iii ) Oxalate insoluble in water (d) Na ( iv ) Formation of very strong monoacidic base Choose the correct answer from the options given below:

(a)-(ii), (b)-(iii), (c)-(i) and (d)-(iv)

(a)-(iv), (b)-(i), (c)-(ii) and (d)-(iii)

(a)-(iii), (b)-(ii), (c)-(iv) and (d)-(i)

(a)-(i), (b)-(iv), (c)-(ii) and (d)-(iii)

EASY

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The characteristic colours given by calcium, strontium and barium in the flame test are respectively

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Important Questions on The s-Block Elements

MEDIUM

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

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

EASY

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

s-block element which cannot be qualitatively confirmed by the flame test is

EASY

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

Valence shell electronic configuration of fourth element of group-

2

in periodic table is

EASY

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

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

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

The ion having the highest mobility in aqueous solution is

MEDIUM

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

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>Group 2 Elements: Alkaline Earth Metals

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

MEDIUM

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

Consider the following ionization enthalpies of two elements 'A' and 'B'.

Element	Ionization enthalphy $(kJ / mol)$
	$1^{st}$	$2^{nd}$	$3^{rd}$
A	899	1757	14847
B	737	1450	7731

Which of the following statements is correct?

EASY

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

In the flame test of a mixture of salts, a green flame with blue centre was observed. Which one of the following cations may be present?

HARD

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

The correct order of melting point is

EASY

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

Match List $- I$ with List $- II$

	List $- I$		List $- II$
(a)	$Ca (OCl)_{2}$	(i)	Antacid
(b)	${CaSO}_{4} \cdot \frac{1}{2} H_{2} O$	(ii)	Cement
(c)	$CaO$	(iii)	Bleach
(d)	${CaCO}_{3}$	(iv)	Plaster of paris

Choose the most appropriate answer from the

EASY

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

The pair of

s

-

block metals, which gives crimson colour to the flame is:

MEDIUM

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

A metal

' M'

readily gives

{MSO}_{4},

which is soluble in water. It forms its oxide

M 0

which is amphoteric. It forms an insoluble hydroxide

M (OH)_{2},

which is soluble in

NaOH

solution. The

M

MEDIUM

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

Magnesium powder burns in air to give

MEDIUM

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

Which one of the following oxide dissolves in both hydrochloric acid and sodium hydroxide?

EASY

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

Ion having highest hydration enthalpy among the given alkaline earth metal ions is:

EASY

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

Match List I with List II

List I		List II
Elements		Colour imparted to the flame
A	$K$	I	Brick Red
B	$Ca$	II	Violet
C	$Sr$	III	Apple Green
D	$Ba$	IV	Crimson Red

Choose the correct answer from the options given below:

EASY

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

Which one of the following alkaline earth metal ions has the highest ionic mobility in its aqueous solution?

MEDIUM

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

Match List-I with List-II

	List - I (Elements)		List - II (Properties)
(a)	$Ba$	$(i)$	Organic solvent soluble compounds
(b)	$Ca$	$(ii)$	Outer electronic configuration $6 s^{2}$
(c)	$Li$	$(iii)$	Oxalate insoluble in water
(d)	$Na$	$(iv)$	Formation of very strong monoacidic base

Choose the correct answer from the options given below:

EASY

Chemistry>Inorganic Chemistry>The s-Block Elements>Group 2 Elements: Alkaline Earth Metals

The correct order of density is

The characteristic colours given by calcium, strontium and barium in the flame test are respectively

Important Questions on The s-Block Elements

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