Class 11 Chemistry Classification of Elements and Periodicity in Properties MCQs with Answer

At Sainik School, our Class 11 Chemistry MCQs on “Classification of Elements and Periodicity in Properties” offer students a comprehensive platform to master this fundamental topic. Covering various aspects of periodicity in the properties of elements, including the periodic table trends, periodicity in atomic and physical properties, and group-wise classification, these multiple-choice questions provide thorough preparation for Class 11 Chemistry exams.

Our MCQs challenge students to apply their knowledge of periodic trends and classification principles to solve problems and analyze scenarios, fostering critical thinking and analytical skills essential for success in exams. Each MCQ is accompanied by a detailed answer explanation, enabling students to grasp the underlying concepts thoroughly.

By practicing Class 11 Chemistry MCQs on “Classification of Elements and Periodicity in Properties” at Sainik School, students not only prepare effectively for their exams but also gain a deeper understanding of the principles governing the organization of elements in the periodic table, laying a strong foundation for their future studies and careers in chemistry and related fields.

At Sainik School, our Class 11 Chemistry MCQs on “Classification of Elements and Periodicity in Properties” offer students a comprehensive platform to master this fundamental topic. Covering various aspects of periodicity in the properties of elements, including the periodic table trends, periodicity in atomic and physical properties, and group-wise classification, these multiple-choice questions provide thorough preparation for Class 11 Chemistry exams.

Our MCQs challenge students to apply their knowledge of periodic trends and classification principles to solve problems and analyze scenarios, fostering critical thinking and analytical skills essential for success in exams. Each MCQ is accompanied by a detailed answer explanation, enabling students to grasp the underlying concepts thoroughly.

By practicing Class 11 Chemistry MCQs on “Classification of Elements and Periodicity in Properties” at Sainik School, students not only prepare effectively for their exams but also gain a deeper understanding of the principles governing the organization of elements in the periodic table, laying a strong foundation for their future studies and careers in chemistry and related fields.

Q1. The ionisation energy of nitrogen is more than oxygen because of:

1. More attraction of electrons by the nucleus.
2. The extra stability of half-filled p-orbitals.
3. The ionic radius of nitrogen atom is smaller.
4. All of the above are correct.

Q2. The period number in the long form of the periodic table is equal to:

1. Magnetic quantum number of any element of the period.
2. Atomic number of any element of the period.
3. Maximum principal quantum number of any element of the period.
4. Maximum azimuthal quantum number of any element of the period

Q3. Which of the following elements can show covalency greater than 4?

1. Be
2. P
3. S
4. B

Q4. Which of the following will have the most negative and least negative electron gain enthalpy respectively, P, S, Cl
and F?

1. P and Cl.
2. S and Cl.
3. Cl and F.
4. Cl and P.

Q6. Which of the following have no unit?

1. Electronegativity.
2. Electron gain enthalpy.
3. Lonisation enthalpy.
4. Metallic character.

Q7. Elements having similar outer shell electronic configuration in their atoms are arranged in:

1. Groups.
2. Vertical columns.
3. Families.
4. All of these.

Q8. Which of the following types of elements show variable valency?

1. Transition elements.
2. s-block elements.
3. f-block elements.
4. Both (a) and (c).

Q9. The elements in which electrons are progressively filled in 4f-orbital are called:

1. Actinoids.
2. Transition elements.
3. Lanthanoids.
4. Halogens.

Q10. In general second ionisation enthalpy of an atom will be:

1. Higher than the first ionisation enthalpy.
2. Equal to the first ionisation enthalpy.
3. Higher than the third ionisation enthalpy.
4. Equal to the third ionisation enthalpy.

Q11. The symbol and name according to the IUPAC system for the element with atomic number = 120, respectively
are:

1. Ubn and unbinilium.
2. Ubn and unbiunium.
3. Ubn and unnilbium.
4. Ubn and unnilium.

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Q12. Successive filling of 3s and 3p orbitals give rise to the third period. The number of elements present in this period
are:

1. 2
2. 4
3. 6
4. 8

Q13. Why do elements in the same group have similar physical and chemical properties?

1. Because of same electronic configuration.
2. Because of same number of electrons.
3. Because of same number of protons.
4. Because of same valence electrons.

Q14. Which important property did Mendeleev use to classify the elements in his periodic table?

1. Atomic weight.
2. Atomic number.
3. Melting point.
4. None of these.

Q15. The horizontal rows and the vertical columns in the periodic table are termed as respectively?

1. Periods, groups.
2. Groups, periods.
3. Series, periods.
4. Family, periods.