CBSE Class 11 Chemistry Revision Worksheet

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THE INDIAN HEIGHTS SCHOOL

Worksheet (2013 – 14)

Chemistry - XI

Date:13.9.13 Name:

Q.1 Multiple Choice Questions:

i) Which orbital is double dumbbell in shape

   (a) S (b) F (c) D (f) P

ii)In which case boiling point of liquid increased?

   (a) Intramolecular H-bonding

   (b) Intermolecular H-bonding

   (c) Dipole moment

   (d) Vander wall forces

iii) Kinetic energy of molecule is highly in

    (a) Gases (b) Solids (c) Liquids (d) Solutions

iv) Which among the following is an extensive property of the system?

   (a) Temperature (c) Refractive Index

   (b) Volume (d) Viscosity

v) How many atoms are present in a mole of H2SO4

   (a) 3 X 6.02 X 1023 (c) 6 X 6.02 X 1023

   (b) 5 X 6.02 X 1023 (d) 7 6.02 X 1023

vi) Friction act between liquid layers known as:

   (a) Surface Tension (c) Viscosity

   (b) Dipole Moment (d) Fluidity

vii) The ratio of the radii of the 1, 2 & 3 Bohr orbits is

   (a) 1 : 0.5 : 0.33 (c) 1 : 4 : 9

   (b) 1 : 2 : 3 (d) 1 : 8 : 27 

viii) The hybridization of atomic orbital of N - atom in NO2+, NO3- and NH4+ are

    (a) Sp2, sp3, sp2

   (b) Sp, sp2, sp3

   (c) Sp2, sp, sp3

   (d) Sp2, sp3, sp

ix) According to Charles law:

   (a) V α T (b) V α 1/T (c) P α T (d) P α 1/T

x) Bond order in O2-2 is

(a) 2.5 (b) 2 (c) 2 (d) 1

xi) Elements with atomic number 90 and onwards are called:

(a) Actinoids (c) Transutanics

(b) Lanthonoids (d) Rare earths

xii) The number of nodes in 4d orbital is

(a) 0 (b) 1 (c) 2 (d) 3

xiii) On increasing temperature surface tension

(a) Increased (c) decreased

(b) No effect (d) depends on nature of liquid

xiv) In the modern periodic table elements are arranged in

(a) Increasing order (c) increasing atomic number

(b) Increasing volume (d) alphabetically

xv) Gas law’s applicable successfully in

(a) Real gas (c) both ideal and real gas

(b) Ideal gas (d) None of the above

Please refer to attached file for CBSE Class 11 Chemistry Worksheet - Revision Worksheet