Punjab 11th Class Chemistry Chapter 1 Basic Concepts MCQs Test Online Punjab 11th Class Chemistry Chapter 1 Basic Concepts MCQs Test Online 12345678910 Question 1 of 10Chemistry 1. A limiting reactant is the one which1.carries the maximum amount of the product which is required2.is taken in lesser quantity in grams as compared to other reactants3.is taken in lesser quantity in volume as compared to the other4.gives the minimum amount of the product under considerationQuestion 1 of 10Question 2 of 10 2. The largest number of molecules is present in1.2.8g of CO 2.4.8g of C2H5OH3.5.4g of N2O54.3.6g of H2OQuestion 2 of 10Question 3 of 10 3. The mass of one mole of electrons is1.0.55mg2.1,008mg3.0.184mg4.1.673mgQuestion 3 of 10Question 4 of 10 4. The volume occupied by 1.4g of N2 at STP is1.112cm32.2.24dm33.1.12dm34.22.4dm3Question 4 of 10Question 5 of 10 5. 27 g of Al will react completely with how much mass of O2 to produce Al2O31.24g of oxygen2.32g of oxygen3.16g of oxygen4.8g of oxygenQuestion 5 of 10Question 6 of 10 6. Many elements have fractional atomic masses, this is because1. atomic masses are average masses of isotopes proportional to their relative abundance.2.atomic masses are average masses of isotopes3.the mass of the atom is itself fractional4.atomic masses are average masses of isotopesQuestion 6 of 10Question 7 of 10 7. One mole of SO2 contains1.6.02 x 1023 atoms of oxygen2.6.02 x 1023 atoms of sulphur3.4g atom of SO24.1.81x 1023 molecules of SO2 Question 7 of 10Question 8 of 10 8. Isotopes differ in 1.properties which depend upon mass2.chemical properties3.arrangement of electrons in orbital4.the extent to which they may be affected in the electromagnetic fieldQuestion 8 of 10Question 9 of 10 9. Which of the following statement is not true?1.Isotopes with odd atomic masses are comparatively abundant.2.Isotopes with even atomic masses and even atomic numbers are comparatively abundant.3.Isotopes with even atomic masses and odd atomic numbers are comparatively abundant.4.Isotopes with even atomic masses are comparatively abundantQuestion 9 of 10Question 10 of 10 10. The number of moles of CO2 which contain 8 g of oxygen18.104.22.168.22.214.171.124Question 10 of 10 Loading... Test By Subject Punjab Test By Topics 11th Class Chemistry You Can Learn and Gain more Knowledge through our Online Quiz and Testing system Just Search your desired Preparation subject at Gotest.