IIT JEE Test Series — Practice smarter, perform stronger.

S-Block Elements formulas

Master S-Block Elements through 14 JEE Advanced-level formulas, systematically structured with every variable spelled out. Revise concept-wise, identify the areas where you need improvement, and focus your preparation with greater precision.

Practise these formulas Know more about IIT JEE

Back to Formula Book

S-Block Elements, every formula

14 formulas, typeset and free. Print it, or keep it open beside your practice.

Group 1 (alkali metals)
$Li, Na, K, Rb, Cs, Fr; ns^{1}$
Q1MCQGroup 1
The general valence configuration of alkali metals is:
- A
  $ns^{1}$
- B
  $ns^{2}$
- C
  $ns^{2}np^{1}$
- D
  $nd^{1}$
Group 2 (alkaline earth)
$Be, Mg, Ca, Sr, Ba, Ra; ns^{2}$
Q1MCQGroup 2
The general valence configuration of alkaline earth metals is:
- A
  $ns^{2}$
- B
  $ns^{1}$
- C
  $ns^{2}np^{2}$
- D
  $nd^{2}$
Flame colours (Na, K, Ca)
$Na golden, K lilac, Ca brick-red$
Q1MCQFlame colour
The flame colour of sodium is:
- A
  golden yellow
- B
  lilac
- C
  brick red
- D
  green
Reactivity with water
$increases down the group$
Q1MCQReactivity
Reactivity of alkali metals with water down the group:
- A
  increases
- B
  decreases
- C
  is constant
- D
  vanishes
Nature of oxides
$basic (become more basic down the group)$
Q1MCQOxides
The oxides of s-block metals are:
- A
  basic
- B
  acidic
- C
  neutral
- D
  amphoteric
Lithium anomaly
$Li resembles Mg (diagonal relationship)$
Q1MCQLi anomaly
Lithium shows a diagonal relationship with:
- A
  Mg
- B
  Na
- C
  Ca
- D
  Be
Hydration enthalpy trend
$decreases down the group$
Q1MCQHydration enthalpy
Hydration enthalpy of alkali metal ions down the group:
- A
  decreases
- B
  increases
- C
  is constant
- D
  is zero
Solubility of hydroxides (group 2)
$increases down the group$
Q1MCQHydroxide solubility
Solubility of group-2 hydroxides down the group:
- A
  increases
- B
  decreases
- C
  is constant
- D
  is zero
Solubility of sulphates (group 2)
$decreases down the group$
Q1MCQSulphate solubility
Solubility of group-2 sulphates down the group:
- A
  decreases
- B
  increases
- C
  is constant
- D
  doubles
Reducing character
$strong reducing agents$
Q1MCQReducing character
Alkali metals act as:
- A
  strong reducing agents
- B
  strong oxidising agents
- C
  catalysts
- D
  neutral
Ionisation energy (group 1)
$lowest in each period$
Q1MCQIE group 1
In any period, the lowest ionization energy belongs to:
- A
  the group-1 element
- B
  the group-18 element
- C
  the group-17 element
- D
  a d-block element
Peroxide/superoxide formation
$Na \to peroxide, K/Rb/Cs \to superoxide$
Q1MCQSuperoxide
On burning in excess oxygen, potassium forms a:
- A
  superoxide
- B
  normal oxide
- C
  peroxide
- D
  carbonate
Sodium bicarbonate
$NaHCO_{3} (baking soda)$
Q1MCQBaking soda
The chemical name of baking soda is:
- A
  sodium bicarbonate ($NaHCO_3$)
- B
  sodium carbonate
- C
  sodium hydroxide
- D
  sodium chloride
Washing soda
$Na_{2} CO_{3} \cdot 10 H_{2} O$
Q1MCQWashing soda
Washing soda is:
- A
  $Na_2CO_3\cdot10H_2O$
- B
  $NaHCO_3$
- C
  $NaOH$
- D
  $NaCl$

More JEE Advanced Chemistry formula sheets

Every chapter sheet is typeset, free and open without a sign-in.

Other ways to revise this chapter

Master this chapter with similar other learning materials.

Preparing students for India’s top institutes

Our students are currently into top technological and medical institutes of India.

IIT Bombay
IIT Delhi
IIT Madras
IIT Kanpur
IIT Kharagpur
IIT Roorkee
IIT Guwahati
IIT BHU Varanasi
AIIMS Delhi
NIT Tiruchirappalli
NIT Rourkela
IIT Bombay
IIT Delhi
IIT Madras
IIT Kanpur
IIT Kharagpur
IIT Roorkee
IIT Guwahati
IIT BHU Varanasi
AIIMS Delhi
NIT Tiruchirappalli
NIT Rourkela

Join QuestPix, Today!

Get notified first, with exam & curriculum updates, course & test series launch offers, motivation & success stories and free learning resources recommended by toppers.

S-Block Elements formulas

S-Block Elements, every formula

Group 1 (alkali metals)

Group 2 (alkaline earth)

Flame colours (Na, K, Ca)

Reactivity with water

Nature of oxides

Lithium anomaly

Hydration enthalpy trend

Solubility of hydroxides (group 2)

Solubility of sulphates (group 2)

Reducing character

Ionisation energy (group 1)

Peroxide/superoxide formation

Sodium bicarbonate

Washing soda

More JEE Advanced Chemistry formula sheets

Other ways to revise this chapter

Preparing students for India’s top institutes

Join QuestPix, Today!