BITSAT Chemistry The S Block Elements MCQs

Chemistry Objective Questions and Answers: The S Block Elements

Review structured MCQ sets for BITSAT Chemistry The S Block Elements. Built according to official BITSAT guidelines, these downloadable questions support daily revision and core concept reinforcement.

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View or download the dedicated The S Block Elements MCQ resource below. Practicing these 50 objective questions regularly builds familiarity with standard exam patterns and helps secure higher marks in final Chemistry evaluations.

Question: Dead burn plaster is

a) CaSO4.2H2O

b) MgSO4. 7H2O

c) CaSO4.½ H2O

d) CaSO4

Answer: CaSO4

 

Question: Which of the following is not present in Portland cement?

a) Ca2SiO4

b) Ca3SiO5

c) Ca3(PO4)2

d) Ca3Al2O6

Answer: Ca3(PO4)2

 

Question: Lithophone is :

a) ZnSO4 + PbS

b) BaSO4 + ZnS

c) PbO2

d) ZnSO4

Answer: BaSO4 + ZnS

 

Question: Which of the following among alkali metal is most reactive ?

a) Na

b) K

c) Rb

d) Cs

Answer: Cs

 

Question: The alkali metals form salt-like hydrides by the direct synthesis at elevated temperature. The thermal stability of these hydrides decreases in which of the following orders ?

a) CsH > RbH > KH > NaH > LiH

b) KH > NaH > LiH > CsH > RbH

c) NaH > LiH > KH > RbH > CsH

d) LiH > NaH > KH > RbH > CsH

Answer: LiH > NaH > KH > RbH > CsH

 

Question: Which of the following has correct increasing basic strength?

a) MgO < BeO < CaO < BaO

b) BeO < MgO < CaO < BaO

c) BaO < CaO < MgO < BeO

d) CaO < BaO < BeO < MgO

Answer: BeO < MgO < CaO < BaO

 

Question: When a crystal of caustic soda is exposed to air, a liquid layer is deposited because :

a) Crystal loses water

b) Crystal absorbs moisture and CO2

c) Crystal melts

d) Crystal sublimes

Answer: Crystal absorbs moisture and CO2

 

Question: Sodium peroxide in contact with most air turns white due to formation of :

a) Na2CO3

b) Na2O

c) NaOH

d) NaHCO3

Answer: NaOH

 

Question: The value of x is maximum for

a) MgSO4.x H2O

b) CaSO4.x H2O

c) BaSO4.x H2O

d) All have the same value of x.

Answer: MgSO4.x H2O

 

Question: Portland cement does not contain

a) CaSiO4

b) Ca2SiO5

c) Ca2Al2O6

d) Ca3(PO4)2

Answer: Ca3(PO4)2

 

Question: In curing cement plasters water is sprinkled from time to time. This helps in

a) Developing interlocking needle-like crystals of hydrated silicates

b) Hydrating sand and gravel mixed with cement

c) Converting sand into silicic acid

d) Keeping it cool

Answer: Developing interlocking needle-like crystals of hydrated silicates

 

Question: LiAlH4 is used as :

a) An oxidizing agent

b) A reducing agent

c) A mordant

d) A water softener

Answer: A reducing agent

 

Question: Which of the following among alkali metal is most reactive ?

a) Na

b) K

c) Rb

d) Cs

Answer: Cs

 

Question: When a crystal of caustic soda is exposed to air, a liquid layer is deposited because :

a) Crystal loses water

b) Crystal absorbs moisture and CO2

c) Crystal melts

d) Crystal sublimes

Answer: Crystal absorbs moisture and CO2

 

Question: In curing cement plasters water is sprinkled from time to time. This helps in

a) Developing interlocking needle-like crystals of hydrated silicates

b) Hydrating sand and gravel mixed with cement

c) Converting sand into silicic acid

d) keeping it cool

Answer: Developing interlocking needle-like crystals of hydrated silicates

Free study material for Chemistry

Practice MCQs for BITSAT Chemistry The S Block Elements

Chapter MCQs with Answers for BITSAT Chemistry

Test your conceptual understanding of The S Block Elements with these targeted multiple-choice questions. Designed in alignment with the latest BITSAT curriculum for BITSAT Chemistry, these problem sets build accuracy and prepare students for objective exams.

Expert Practice Material for BITSAT Chemistry

Built using the official NCERT book for BITSAT, these Chemistry objective sets provide reliable academic guidance. Pair your practice with our recommended NCERT solutions to master optimal problem-solving approaches.

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FAQs

Where can I access latest BITSAT Chemistry The S Block Elements MCQs?

You can get most exhaustive BITSAT Chemistry The S Block Elements MCQs for free on StudiesToday.com. These MCQs for BITSAT Chemistry are updated for the 2026-27 academic session as per BITSAT examination standards.

Are Assertion-Reasoning and Case-Study MCQs included in the Chemistry BITSAT material?

Yes, our BITSAT Chemistry The S Block Elements MCQs include the latest type of questions, such as Assertion-Reasoning and Case-based MCQs. 50% of the BITSAT paper is now competency-based.

How do practicing Chemistry MCQs help in scoring full marks in BITSAT exams?

By solving our BITSAT Chemistry The S Block Elements MCQs, BITSAT students can improve their accuracy and speed which is important as objective questions provide a chance to secure 100% marks in the Chemistry.

Do you provide answers and explanations for BITSAT Chemistry The S Block Elements MCQs?

Yes, Chemistry MCQs for BITSAT have answer key and brief explanations to help students understand logic behind the correct option as its important for 2026 competency-focused BITSAT exams.

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