NEET Chemistry The S-Block Elements MCQs

Prepare for NEET Chemistry The S-Block Elements with MCQs & PYQs on NEET.GUIDE. Get free practice, previous year questions, and expert solutions for alkali and alkaline earth metals.

NEET Questions / Chemistry / The S-Block Elements

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Alkaline Earth Metals

A mixture of CaCO $_3$ and MgCO $_3$ weighing 1.84 g on heating left a residue weighing 0.96g. What is the percentage by mass of CaCO $_3$ in the original mixture?

A

40%

B

47.8%

C

52.2%

D

60%

Question Tags

📚 Subject:Chemistry

📑 Chapter:The S-Block Elements

🎯Topic:Alkaline Earth Metals

🎓 Ncert Level:Application

🎯Difficulty :Hard

⚡ Time Required :4 mins

🔄Ncert Concepts :Stoichiometry, Alkaline Earth Metals, Decomposition

Which alkali metal nitrate upon strong heating produces the metal nitrite and oxygen?

A

LiNO3

B

NaNO3

C

KNO3

D

RbNO3

Question Tags

📚 Subject:Chemistry

📑 Chapter:The S-Block Elements

🎯Topic:Alkali Metals

🎓 Ncert Level:Remembering

🎯Difficulty :Hard

⚡ Time Required :1 mins

🔄Ncert Concepts :Alkali metals, Nitrates, Thermal decomposition

Which of the following metal carbonates decomposes most readily upon heating to release $CO_2$ ?

A

$MgCO_3$

B

$CaCO_3$

C

$SrCO_3$

D

$BaCO_3$

Question Tags

📚 Subject:Chemistry

📑 Chapter:The S-Block Elements

🎯Topic:Alkaline Earth Metals

PYQ Year :2015

🎓 Ncert Level:Understanding

🎯Difficulty :Easy

⚡ Time Required :1 mins

🔄Ncert Concepts :Thermal Stability of Carbonates, Decomposition Reaction

Upon heating, $CaCO_3$ decomposes to form:

A

$CaO$ and $CO_2$

B

$CaO$ and $CO$

C

$Ca(OH)_2$ and $CO_2$

D

$Ca$ and $CO_2$

Question Tags

📚 Subject:Chemistry

📑 Chapter:The S-Block Elements

🎯Topic:Alkaline Earth Metals

PYQ Year :2015

🎓 Ncert Level:Remembering

🎯Difficulty :Easy

⚡ Time Required :1 mins

🔄Ncert Concepts :Decomposition Reaction, Chemical Equations

Nitrogen dioxide cannot be prepared by heating

A

${\rm{KN}}{{\rm{O}}_3}$

B

${\rm{Pb}}{\left( {{\rm{N}}{{\rm{O}}_3}} \right)_2}$

C

${\rm{Cu}}{\left( {{\rm{N}}{{\rm{O}}_3}} \right)_2}$

D

${\rm{AgN}}{{\rm{O}}_3}$

Question Tags

📚 Subject:Chemistry

📑 Chapter:The S-Block Elements

🎯Topic:Alkaline Earth Metals

🎓 Ncert Level:Understanding

🎯Difficulty :Medium

⚡ Time Required :2 mins

🔄Ncert Concepts :Thermal decomposition, Metal nitrates, Nitrogen dioxide

Incorrect statement among the following is

A

Ionic bonds are formed by the transfer of electrons.

B

Covalent bonds are formed by the sharing of electrons.

C

Metallic bonds involve a sea of electrons shared among metal cations.

D

Hydrogen bonds are stronger than covalent bonds.

Question Tags

📚 Subject:Chemistry

📑 Chapter:The S-Block Elements

🎯Topic:Alkaline Earth Metals

🎓 Ncert Level:Analyzing

🎯Difficulty :Medium

⚡ Time Required :2 mins

🔄Ncert Concepts :Thermal stability, Decomposition reactions, Amphoteric oxides, Solubility of ionic compounds

Incorrect statement among the following is

A

Alkali metals react vigorously with water.

B

Alkali metals have low ionization energies.

C

Alkali metals have low densities compared to transition metals.

D

Alkali metals readily form anions.

Question Tags

📚 Subject:Chemistry

📑 Chapter:The S-Block Elements

🎯Topic:Alkaline Earth Metals

🎓 Ncert Level:Analyzing

🎯Difficulty :Medium

⚡ Time Required :2 mins

🔄Ncert Concepts :Thermal stability, Decomposition reactions, Amphoteric oxides, Solubility of sulfates

Consider the following statements

(a) Density of sodium is more than potassium.

(b) Potassium carbonate is manufactured by Solvay process

(c) $LiN{O_3}$ evolves $N{O_2}$ gas on heating but $NaN{O_3}$ does not

The correct statement(s) is/are

A

(a), (b)

B

(a), (c)

C

(b), (c)

D

(a), (b), (c)

Question Tags

📚 Subject:Chemistry

📑 Chapter:The S-Block Elements

🎯Topic:Alkaline Earth Metals

🎓 Ncert Level:Analyzing

🎯Difficulty :Medium

⚡ Time Required :3 mins

🔄Ncert Concepts :Density, Alkali Metals, Solvay Process, Thermal Decomposition

Consider the following statements

(a) Density of sodium is more than potassium.

(b) Potassium carbonate is manufactured by Solvay process

(c) $LiN{O_3}$ evolves $N{O_2}$ gas on heating but $NaN{O_3}$ does not

The correct statement(s) is/are

A

(a) only

B

(a) and (b) only

C

(a) and (c) only

D

(a), (b) and (c)

Question Tags

📚 Subject:Chemistry

📑 Chapter:The S-Block Elements

🎯Topic:Alkaline Earth Metals

🎓 Ncert Level:Analyzing

🎯Difficulty :Medium

⚡ Time Required :2 mins

🔄Ncert Concepts :Density trends in alkali metals, Solvay process, Thermal decomposition of nitrates

On strong heating ${\rm{MgC}}{{\rm{l}}_2}.6{{\rm{H}}_2}{\rm{O}}$ , the product obtained is

A

${\rm{MgC}}{{\rm{l}}_2}$

B

${\rm{MgO}}$

C

${\rm{MgC}}{{\rm{l}}_2}.2{{\rm{H}}_2}{\rm{O}}$

D

${\rm{MgC}}{{\rm{l}}_2}.4{{\rm{H}}_2}{\rm{O}}$

Question Tags

📚 Subject:Chemistry

📑 Chapter:The S-Block Elements

🎯Topic:Alkaline Earth Metals

🎓 Ncert Level:Understanding

🎯Difficulty :Medium

⚡ Time Required :2 mins

🔄Ncert Concepts :Thermal decomposition, Hydrated salts, Metal oxides

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