1st Year Chemistry
Full Book Exercise Mcqs- All Punjab Boards
Pakistan
Malik Xufyan
, 1st Year Chemistry – Full Book Exercise MCQS Punjab
Chapter No. 1
BASIC CONCEPTS
TEXT BOOK EXERCISE
Q1. Select the most suitable answer from the given ones in each question.
(i) The mass of one mole of electrons is
(a) Properties which depend upon mass
(b) Arrangement of electrons in orbital
(c) Chemical properties
(d) The extent to which they may be affected in electromagnetic field
(ii) Which of the following statements is not true?
(a) isotopes with even atomic masses are comparatively abundant
(b) isotopes with odd atomic masses and even atomic number are
comparatively abundant
(c) atomic masses are average masses of isotopes.
(d) Atomic masses are average masses of isotopes proportional to their
relative abundance
(iii) Many elements have fractional atomic masses, this is because
(a) The mass of the atom is itself fractional
(b) Atomic masses are average masses of isobars
(c) Atomic masses are average masses of isotopes.
(d) Atomic masses are average masses of isotopes proportional to their
relative abundance
(iv) The mass of one mole of electrons is
(a) 008mg (b) 0.55mg (c) 0.184mg (d) 1.673mg
(v) 27g of Al will react completely with how much mass of O2 to produce
Al2O3
(a) 8g of oxygen (b) 16g of oxygen
(c) 32g of oxygen (d) 24g of oxygen
(vi) The number of moles of CO2 which contain 8.0 g of oxygen.
(a) 0.25 (b) 0.50 (c) 1.0 (d) 1.50
(vii) The largest number of molecules are present in
(a) 3.6g of H2 O (b) 4.8g of C2H5 OH
(c) 2.8 g of CO (d) 5.4g of N2O5
(viii) One mole of SO2 contains
(a) 6.02x1023 atoms of oxygen
, 1st Year Chemistry – Full Book Exercise MCQS Punjab
(b) 18.1x1023 Molecules of SO2
(c) 6.02x1023 atoms of sulphur
(d) 4 gram atoms of SO2
(ix) The volume occupied by 1.4 g of N2at STP is
(a) 2.24 dm3 (b) 22.4dm3
(c) 1.12 dm3 (d) 112 cm3
(x) A limiting reactant is the one which
(a) is taken in lesser quantity in grams as compared to other reactants
(b) is taken in lesser quantity in volume as compared to the other reactants
(c) give the maximum amount of the product which is required
(d) give the minimum amount of the product under consideration
Chapter No. 2
EXPERIMENTAL TECHNIQUES IN CHEMISTRY
TEXT BOOK EXERCISE
Q.1. Multiple choice questions.
i. Filtration process could be very time consuming if it were not aided by a
gentle suction which is developed:
(a) if the paper covers the funnel upto its circumference.
(b) if the paper has got small sized pores in it.
(c) if the stem of the funnel is large so that it dips into the filtrate.
(d) if the paper fits tightly.
ii. During the process of crystallization, the hot saturated solution:
(a) is cooled very slowly to get large sized crystals
(b) is cooled at a moderate rate to get medium sized crystals
(c) is evaporated to get the crystals of the product.
(d) is mixed with an immiscible liquid to get the pure crystals of
the product.
iii. Solvent extraction is an equilibrium process and it is controlled by.
(a) law of mass action
Full Book Exercise Mcqs- All Punjab Boards
Pakistan
Malik Xufyan
, 1st Year Chemistry – Full Book Exercise MCQS Punjab
Chapter No. 1
BASIC CONCEPTS
TEXT BOOK EXERCISE
Q1. Select the most suitable answer from the given ones in each question.
(i) The mass of one mole of electrons is
(a) Properties which depend upon mass
(b) Arrangement of electrons in orbital
(c) Chemical properties
(d) The extent to which they may be affected in electromagnetic field
(ii) Which of the following statements is not true?
(a) isotopes with even atomic masses are comparatively abundant
(b) isotopes with odd atomic masses and even atomic number are
comparatively abundant
(c) atomic masses are average masses of isotopes.
(d) Atomic masses are average masses of isotopes proportional to their
relative abundance
(iii) Many elements have fractional atomic masses, this is because
(a) The mass of the atom is itself fractional
(b) Atomic masses are average masses of isobars
(c) Atomic masses are average masses of isotopes.
(d) Atomic masses are average masses of isotopes proportional to their
relative abundance
(iv) The mass of one mole of electrons is
(a) 008mg (b) 0.55mg (c) 0.184mg (d) 1.673mg
(v) 27g of Al will react completely with how much mass of O2 to produce
Al2O3
(a) 8g of oxygen (b) 16g of oxygen
(c) 32g of oxygen (d) 24g of oxygen
(vi) The number of moles of CO2 which contain 8.0 g of oxygen.
(a) 0.25 (b) 0.50 (c) 1.0 (d) 1.50
(vii) The largest number of molecules are present in
(a) 3.6g of H2 O (b) 4.8g of C2H5 OH
(c) 2.8 g of CO (d) 5.4g of N2O5
(viii) One mole of SO2 contains
(a) 6.02x1023 atoms of oxygen
, 1st Year Chemistry – Full Book Exercise MCQS Punjab
(b) 18.1x1023 Molecules of SO2
(c) 6.02x1023 atoms of sulphur
(d) 4 gram atoms of SO2
(ix) The volume occupied by 1.4 g of N2at STP is
(a) 2.24 dm3 (b) 22.4dm3
(c) 1.12 dm3 (d) 112 cm3
(x) A limiting reactant is the one which
(a) is taken in lesser quantity in grams as compared to other reactants
(b) is taken in lesser quantity in volume as compared to the other reactants
(c) give the maximum amount of the product which is required
(d) give the minimum amount of the product under consideration
Chapter No. 2
EXPERIMENTAL TECHNIQUES IN CHEMISTRY
TEXT BOOK EXERCISE
Q.1. Multiple choice questions.
i. Filtration process could be very time consuming if it were not aided by a
gentle suction which is developed:
(a) if the paper covers the funnel upto its circumference.
(b) if the paper has got small sized pores in it.
(c) if the stem of the funnel is large so that it dips into the filtrate.
(d) if the paper fits tightly.
ii. During the process of crystallization, the hot saturated solution:
(a) is cooled very slowly to get large sized crystals
(b) is cooled at a moderate rate to get medium sized crystals
(c) is evaporated to get the crystals of the product.
(d) is mixed with an immiscible liquid to get the pure crystals of
the product.
iii. Solvent extraction is an equilibrium process and it is controlled by.
(a) law of mass action
