CBSE Class 11 Chemistry S-Block Elements Worksheet Set A

Read and download free pdf of CBSE Class 11 Chemistry S-Block Elements Worksheet Set A. Download printable Chemistry Class 11 Worksheets in pdf format, CBSE Class 11 Chemistry Chapter 10 The s-Block Elements Worksheet has been prepared as per the latest syllabus and exam pattern issued by CBSE, NCERT and KVS. Also download free pdf Chemistry Class 11 Assignments and practice them daily to get better marks in tests and exams for Class 11. Free chapter wise worksheets with answers have been designed by Class 11 teachers as per latest examination pattern

Chapter 10 The s-Block Elements Chemistry Worksheet for Class 11

Class 11 Chemistry students should refer to the following printable worksheet in Pdf in Class 11. This test paper with questions and solutions for Class 11 Chemistry will be very useful for tests and exams and help you to score better marks

Class 11 Chemistry Chapter 10 The s-Block Elements Worksheet Pdf

s -BLOCK ELEMENTS
 
Multiple Choice Questions:
 
1. By adding gypsum to cement
a) setting time of cement becomes less.
b) setting time of cement increases.
c) colour of cement becomes light.
d) shining surface is obtained.
 
2. The reducing power of a metal depends on various factors. Suggest the factor which makes Li, the strongest reducing agent in aqueous solution.
a) Sublimation enthalpy
b) Ionisation enthalpy
c) Hydration enthalpy
d) Electron-gain enthalpy
 
3. Metal carbonates decompose on heating to give metal oxide and carbon dioxide. Which of the metal carbonates is most stable thermally?
a) MgCO3
b) CaCO3
c) SrCO3
d) BaCO3
 
4. When sodium is dissolved in liquid ammonia, a solution of deep blue colour is obtained. The colour of the solution is due to
a) ammoniated electron
b) sodium ion
c) sodium amide
d) ammoniated sodium ion
 
5. Which statement is false for alkali metals?
a) Lithium is the strongest reducing agent
b) Sodium is amphoteric in nature
c) Li+ is exceptionally small
d) All alkali metals give blue solution in liquid ammonia
 
6. Which alkali metal cation has the highest polarising power?
a) Li+
b) Na+
c) K+
d) Cs+
 
Assertion[A] & Reasoning[R]
 
(A) Both assertion and reason are correct statements, and the reason is the correct explanation of the assertion
(B) Both assertion and reason are correct statements, but reason is not the correct explanation of the assertion
(C) Assertion is correct, but reason is wrong statement
(D) Assertion is wrong, but reason is correct statement
(E) Both assertion and reason are wrong statements
 
1. [A]: Potassium and caesium are useful as electrodes in photoelectric cells.
[R]: When irradiated with light, electrons are ejected from its surface immediately.
 
2. [A]: Ionisation enthalpy of group 2 elements is lower than group 1 elements.
[R]: Group 2 elements have bigger atomic size than group 1 elements.
 
3. [A]: The carbonate of lithium decomposes easily on heating to form lithium oxide and CO2
[R]: Lithium being small in size polarizes large carbonate ion leading to the formation of stable Li2O.
 
4. [A]: Radium is the most abundant s-block element.
[R]: Except francium all s-block elements are non-radioactive in nature.
 
Answer the following questions:
 
1 Explain giving reasons:
 
a) Alkali metals are not found in nature.
b) Lithium halides are covalent
c) Magnesium does not impart color to flame.
d) Potassium carbonate cannot be prepared by Solvay process.
e) Solubility of group II sulphates decrease down the group.
f) Thermal stability of group II oxides decreases down the group.
g) LiCl is hydrated while NaCl is not.
h) LiF has low solubility in water.
i) The E0 value of Li is the most negative among alkali metals.
j) BeCl2 is soluble in organic solvents.
k) Li resembles Mg in some of its properties
l) Be differs in some of its properties from group II metals.
m) The maximum co-ordination number of beryllium is 4.
n) Sodium does not form superoxide.
o) Beryllium is kinetically inert to oxygen and water.
p) Gypsum is added to cement.
q) CsI has low solubility in water.
 
2 Explain the manufacture of a) washing soda b) caustic soda
 
3 Draw the structures of BeCl2 in the vapour state below 1200 K and in the solid state.
 
4 What happens when (give balanced equations)
a) CO2 is passed through limewater; in excess.
b) Calcium nitrate is heated
c) Sodium nitrate is heated
d) Chlorine reacts with slaked lime
e) BeCl2 is reacted with lithium aluminium hydride.
f) Hydrated magnesium chloride is heated.
g) Alkali metals are mixed with liquid ammonia.
 
5 Illustrate the anomalous behavior of a) Li    b) Be.
 
6 Illustrate the diagonal relationship between a)Li-Mg    b)Be-Al.


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Chapter 10 The s-Block Elements CBSE Class 11 Chemistry Worksheet

The above practice worksheet for Chapter 10 The s-Block Elements has been designed as per the current syllabus for Class 11 Chemistry released by CBSE. Students studying in Class 11 can easily download in Pdf format and practice the questions and answers given in the above practice worksheet for Class 11 Chemistry on a daily basis. All the latest practice worksheets with solutions have been developed for Chemistry by referring to the most important and regularly asked topics that the students should learn and practice to get better scores in their examinations. Studiestoday is the best portal for Printable Worksheets for Class 11 Chemistry students to get all the latest study material free of cost. Teachers of studiestoday have referred to the NCERT book for Class 11 Chemistry to develop the Chemistry Class 11 worksheet. After solving the questions given in the practice sheet which have been developed as per the latest course books also refer to the NCERT solutions for Class 11 Chemistry designed by our teachers. After solving these you should also refer to Class 11 Chemistry MCQ Test for the same chapter. We have also provided a lot of other Worksheets for Class 11 Chemistry which you can use to further make yourself better in Chemistry.

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