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

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

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 Column I with Column II Column I Column II A Soda ash I CaSO 4 B Chlorophyll II Ca OH 2 C Used in Whitewashing III Na 2 CO 3 D Dentistry, ornamental work IV Mg 2 + ions

A – III, B – IV, C – I, D – II

A – II, B – I, C – III, D – IV

A – III, B – I, C – II, D – IV

A – II, B – III, C – IV, D – I

Name the following element: An alkaline earth metal present in group 2 and period 3 .

An alkaline earth metal that is present in group two has valency 2 , and as it is present in period third it has three shells in its atom. Its electronic configuration is 2 , 8 , 2 , hence its atomic number is 12 . The metal is magnesium.

EASY

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The elements of group $2$ are known as metals.

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Important Questions on The s-Block Elements

MEDIUM

Chemistry>Inorganic Chemistry>The s-Block Elements>General Introduction of Group 2 Elements

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

EASY

Chemistry>Inorganic Chemistry>The s-Block Elements>General Introduction of Group 2 Elements

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

Chemistry>Inorganic Chemistry>The s-Block Elements>General Introduction of Group 2 Elements

The alkaline earth metal sulphate, which has its hydration enthalpy greater than its lattice energy is

EASY

Chemistry>Inorganic Chemistry>The s-Block Elements>General Introduction of Group 2 Elements

Which of the following metal is the most abundant in the earth's crust?

MEDIUM

Chemistry>Inorganic Chemistry>The s-Block Elements>General Introduction of Group 2 Elements

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

Chemistry>Inorganic Chemistry>The s-Block Elements>General Introduction of Group 2 Elements

Give a reason for the following.

Alkali metals are good reducing agents.

EASY

Chemistry>Inorganic Chemistry>The s-Block Elements>General Introduction of Group 2 Elements

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

MEDIUM

Chemistry>Inorganic Chemistry>The s-Block Elements>General Introduction of Group 2 Elements

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>General Introduction of Group 2 Elements

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

MEDIUM

Chemistry>Inorganic Chemistry>The s-Block Elements>General Introduction of Group 2 Elements

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

EASY

Chemistry>Inorganic Chemistry>The s-Block Elements>General Introduction of Group 2 Elements

Match Column I with Column II

	Column I		Column II
A	Soda ash	I	${CaSO}_{4}$
B	Chlorophyll	II	$Ca {(OH)}_{2}$
C	Used in Whitewashing	III	${Na}_{2} {CO}_{3}$
D	Dentistry, ornamental work	IV	${Mg}^{2 +}$ ions