Read and download free pdf of CBSE Class 11 Chemistry The S Block Elements Worksheet Set A. Students and teachers of Class 11 Chemistry can get free printable Worksheets for Class 11 Chemistry in PDF format prepared as per the latest syllabus and examination pattern in your schools. Standard 11 students should practice questions and answers given here for Chemistry in Grade 11 which will help them to improve your knowledge of all important chapters and its topics. Students should also download free pdf of Class 11 Chemistry Worksheets prepared by school teachers as per the latest NCERT, CBSE, KVS books and syllabus issued this academic year and solve important problems provided here with solutions on daily basis to get more score in school exams and tests
The S Block Elements Class 11 Chemistry Worksheet Pdf
Class 11 Chemistry students should refer to the following printable worksheet in Pdf for The S Block Elements in standard 11. This test paper with questions and answers for Grade 11 Chemistry will be very useful for exams and help you to score good marks
Class 11 Chemistry Worksheet for The S Block Elements
The S Block Elements MCQ Questions with Answers Class 11 Chemistry
Question- Which of the following pairs of substances would give same gaseous product on reaction with water?
(a) Na and Na2O2
(b) Ca and CaH2
(c) Ca and CaO
(d) Ba and BaO2
Answer-(b)
Question- Which of the following alkali metal is highly radioactive?
(a) Rubidium
(b) Caesium
(c) Francium
(d) Both (a) and (c)
Answer-(c)
Question- Which of the following is used as a source of oxygen in space capsules, submarines and breathing masks ?
(a) Li2O
(b) Na2O2
(c) KO2
(d) K2O2
Answer-(c)
Question- Ionization potential of Na would be numerically the same as
(a) electron affinity of Na+
(b) electronegativity of Na+
(c) electron affinity of He
(d) ionization potential of Mg
Answer-(a)
Question- Which hydride is most stable
(a) NaH
(b) KH
(c) CsH
(d) LiH
Answer-(d)
Question- Which of the following has density greater than water?
(a) Li
(b) Na
(c) K
(d) Rb
Answer-(d)
Question- Which one of the alkali metals, forms only, the normal oxide, M2O on heating in air ?
(a) Rb
(b) K
(c) Li
(d) Na
Answer-(c)
Question- The elements of group 1 provide a colour to the flame of Bunsen burner due to
(a) low ionization potential
(b) low melting point
(c) softness
(d) presence of one electron in the outermost orbit
Answer-(a)
Question- In the case of the alkali metals
(a) the cation is less stable than the atom
(b) the cation is smaller than the atom
(c) the cation and the atom have about the same size
(d) the cation is larger than the atom
Answer-(b)
Question- Which of the following statements is not correct for alkali metals?
(a) Alkali metals are the most electropositive metals.
(b) Alkali metals exist in free state in nature.
(c) These metals have the largest size in a particular period of the periodic table.
(d) Both (b) and (c)
Answer-(b)
Question- The metal that produces red-violet colour in the nonluminous flame is
(a) Ba
(b) Ag
(c) Rb
(d) Pb
Answer-(c)
Question- The alkali metals have low melting point. Which of the following alkali metal is expected to melt if the room temperature rises to 30°C?
(a) Na
(b) K
(c) Rb
(d) Cs
Answer-(d)
Question- The element which on burning in air gives peroxide is
(a) lithium
(b) sodium
(c) rubidium
(d) caesium
Answer-(b)
Question- Which one of the following properties of alkali metals increases in magnitude as the atomic number rises ?
(a) Ionic radius
(b) Melting point
(c) Electronegativity
(d) First ionization energy.
Answer-(a)
Question- The ionic mobility of alkali metal ions in aqueous solution is maximum for
(a) Li+
(b) Na+
(c) K+
(d) Rb+
Answer-(d)
Question- Group 2 elements are called alkaline earth metals why? Choose the correct reason(s).
(i) Hydroxides formed by group 2 elements are alkaline in nature.
(ii) Their metal oxides are found in the earth’s crust.
(iii) Their oxides are alkaline in nature
(iv) Group 2 elements react with alkalies.
(a) (i) and (ii)
(b) (ii) and (iv)
(c) (i), (ii) and (iii)
(d) (ii) and (iii)
Answer-(c)
Question- For an aqueous solution under an electric field which of the following have lowest mobility ?
(a) Li+
(b) Na+
(c) K+
(d) Rb+
Answer-(a)
Question- Which is the most basic of the following?
(a) Na2O
(b) BaO
(c) As2O3
(d) Al2O3
Answer-(a)
Question- Which of the following has largest size ?
(a) Na
(b) Na+
(c) Na–
(d) Can’t be predicted
Answer-(c)
Question- The most stable compound is
(a) LiF
(b) LiCl
(c) LiBr
(d) LiI
Answer-(a)
Students must free download and practice these worksheets to gain more marks in exams.CBSE Class 11 Chemistry The S Block Elements Worksheet Set A
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