JEE Main sBlock Elements Practice Questions With Solutions

JEE Main S Block Elements Practice Questions with Solutions

The S Block elements are also known as Group 1 and Group 2 elements, which consist of alkali and alkaline earth metals. The JEE Main S Block Elements Practice Test is an essential resource for all JEE Main aspirants to learn about the main concepts of S Block Elements and improve their knowledge of this chapter. The JEE Main S Block Elements Practice Questions with Solutions have a variety of questions from the S Block Elements for students to practice and strengthen their chemistry section for the JEE Main entrance test.

About 4 to 5 questions may appear from the S Block Elements on the JEE Main question paper. Usually, the question will be in the form of multiple choice questions, testing your knowledge of inorganic chemistry. JEE Main is a highly competitive entrance exam for all engineering aspirants. Therefore, it is essential for candidates to attempt these practice tests at least once a week to develop knowledge and precision of the topic.

Around 15 to 20 questions are available from the S Block Elements in the JEE Main S Block Elements Practice Questions with Solutions, covering all the essential topics. The important topics of the S Block Elements chapter are Compounds of S-Block Elements, Properties and Chemical Reactivity, Electronic Structure & Periodic Trends, Hardness of Water, Anomalies and Exceptions, and Periodic Table Placement & Group Comparisons. The practice tests, containing questions on all these topics along with their detailed solutions, will allow aspirants to understand the basic concepts well by going through the detailed explanations provided.

Thoroughly practising the JEE Main S Block Elements Practice Questions with Solutions on a regular basis will help students to improve their accuracy and manage their time better during the examination. It will also allow them to memorise the elements, learn their properties and functions, and gain confidence in solving questions from this topic with ease in the JEE Main exam.

JEE Main Chemistry sBlock Elements Practice Questions

Mathematics Physics

Question 1.

Given below are two statements : One is labelled as Assertion A and the other is labelled as Reason R :

Assertion (A) :

{BeCl}_{2}

and

{MgCl}_{2}

produce characteristic flame

Reason (R) : The excitation energy is high in

{BeCl}_{2}

and

{MgCl}_{2}

In the light of the above statements, choose the correct answer from the options given below :

A

(A)

is true but

(R)

is false

B

Both (A) and

(R)

are true and

(R)

is the correct explanation of

(A)

C

(A) is false but (R) is true

D

Both (A) and (R) are true but (R) is NOT the correct explanation of (A)

Question 2.

Better method for preparation of ${BeF}_{2}$ , among the following is :

A

{BeH}_{2} + F_{2} \overset{Δ}{⟶} {BeF}_{2}

B

{({NH}_{4})}_{2} {BeF}_{4} \overset{Δ}{⟶} {BeF}_{2}

C

Be + F_{2} \overset{Δ}{⟶} {BeF}_{2}

D

BeO + C + F_{2} \overset{Δ}{⟶} {BeF}_{2}

Question 3.

Identify the correct order of standard enthalpy of formation of sodium halides :

A

NaI < NaBr < NaCl < NaF

B

NaI < NaBr < NaF < NaCl

C

NaF < NaCl < NaBr < NaI

D

NaCl < NaF < NaBr < NaI

Question 4.

$Be (OH)_{2}$ reacts with $Sr (OH)_{2}$ to yield an ionic salt.

Choose the incorrect option related to this reaction from the following :

A

Be is tetrahedrally coordinated in the ionic salt.

B

The element

Be

is present in the cationic part of the ionic salt.

C

Both

Sr

and

Be

elements are present in the ionic salt.

D

The reaction is an example of acid - base neutralization reaction.

Question 5.

The density of alkali metals is in the order :

A

Na < K < Cs < Rb

B

K < Na < Rb < Cs

C

K < Cs < Na < Rb

D

Na < Rb < K < Cs

Question 6.

In the given reaction cycle

JEE Main 2023 (Online) 12th April Morning Shift Chemistry - s-Block Elements Question 14 English

X, Y and Z respectively are :

A

\begin{array}{lll} X & Y & Z \\ {CaCO}_{3} & NaCl & KCl \end{array}

B

\begin{array}{lcl} X & Y & Z \\ CaO & NaCl + {CO}_{2} & NaCl \end{array}

C

\begin{array}{lll} X & Y & Z \\ {CaCO}_{3} & NaCl & HCl \end{array}

D

\begin{array}{ccc} X & Y & Z \\ CaO & NaCl + {CO}_{2} & KCI \end{array}

Question 7.

Alkali metal from the following with least melting point is :

A

Rb

B

Na

C

K

D

Cs

Question 8.

Match List-I with List-II:

	List - I		List - II
A.	K	I.	Thermonuclear reactions
B.	KCl	II.	Fertilizer
C.	KOH	III.	Sodium potassium pump
D.	Li	IV.	Absorbent of CO $_{2}$

Choose the correct answer from the options given below :

A

A-IV, B-III, C-I, D-II

B

A-III, B-II, C-IV, D-I

C

A-III, B-IV, C-II, D-I

D

A-IV, B-I, C-III, D-II

Question 9.

The correct order of metallic character is :

A

K > Be > Ca

B

Ca > K > Be

C

K > Ca > Be

D

Be > Ca > K

Question 10.

Number of water molecules in washing soda and soda ash respectively are :

A

1 and 0

B

10 and 1

C

1 and 10

D

10 and 0

Question 1.

Lime reacts exothermally with water to give 'A' which has low solubility in water. Aqueous solution of 'A' is often used for the test of CO $_{2}$ , a test in which insoluble B is formed. If B is further reacted with CO $_{2}$ then soluble compound is formed, 'A' is :

A

Quick lime

B

White lime

C

Lime water

D

Slaked lime

Question 2.

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R.

Assertion A : Sodium is about 30 times as abundant as potassium in the oceans.

Reason R : Potassium is bigger in size than sodium.

In the light of the above statements, choose the correct answer from the options given below

A

Both A and R are true but R is NOT the correct explanation of A

B

A is false but R is true

C

Both A and R are true and R is the correct explanation of A

D

A is true but R is false

Question 3.

For a good quality cement, the ratio of lime to the total of the oxides of $Si, Al$ and $Fe$ should be as close as to :

A

3

B

2

C

1

D

4

Question 4.

Given below are two statements:

Statement I : Lithium and Magnesium do not form superoxide

Statement II : The ionic radius of ${Li}^{+}$ is larger than ionic radius of ${Mg}^{2 +}$

In the light of the above statements, choose the most appropriate answerfrom the options given below :

A

Statement I is incorrect but Statement II is correct

B

Both Statement I and Statement II are incorrect

C

Both Statement I and Statement II are correct

D

Statement I is correct but Statement II is incorrect

Question 5.

What is the purpose of adding gypsum to cement?

A

To facilitate the hydration of cement

B

To speed up the process of setting

C

To give a hard mass

D

To slow down the process of setting

Question 6.

The product, which is not obtained during the electrolysis of brine solution is :

A

NaOH

B

Cl

_{2}

C

H

_{2}

D

HCl

Question 7.

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

A

{Sr}^{2 +}

B

{Ca}^{2 +}

C

{Be}^{2 +}

D

{Ba}^{2 +}

Question 8.

Structures of ${BeCl}_{2}$ in solid state, vapour phase and at very high temperature respectively are :

A

Polymeric, Dimeric, Monomeric

B

Dimeric, Polymeric, Monomeric

C

Polymeric, Monomeric, Dimeric

D

Monomeric, Dimeric, Polymeric

Question 9.

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A) : Gypsum is used for making fireproof wall boards.

Reason (R) : Gypsum is unstable at high temperatures.

In the light of the above statements, choose the correct answer from the options given below :

A

Both (A) and (R) are correct but (R) is not the correct explanation of (A)

B

Both (A) and (R) are correct and (R) is the correct explanation of (A)

C

(A) is correct but (R) is not correct

D

(A) is not correct but (R) is correct

Question 10.

Match List I with List II :

	List I		List II
A.	Slaked lime	I.	$NaOH$
B.	Dead burnt plaster	II.	$Ca (OH)_{2}$
C.	Caustic soda	III.	${Na}_{2} {CO}_{3} \cdot 10 H_{2} O$
D.	Washing soda	IV.	${CaSO}_{4}$

Choose the correct answer from the options given below :

A

(A) - III, (B) - IV, (C) - II, (D) - I

B

(A) - III, (B) - II, (C) - IV, (D) - I

C

(A) - II, (B) - IV, (C) - I, (D) - III

D

(A) - I, (B) - IV, (C) - II, (D) - III

JEE Main sBlock Elements Practice Questions With Solutions

JEE Main S Block Elements Practice Questions with Solutions

JEE Main Chemistry sBlock Elements Practice Questions

Question 1.

Question 2.

Question 3.

Question 4.

Question 5.

Question 6.

Question 7.

Question 8.

Question 9.

Question 10.

Question 1.

Question 2.

Question 3.

Question 4.

Question 5.

Question 6.

Question 7.

Question 8.

Question 9.

Question 10.

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