1st PUC Chemistry Series-4 December 2, 2020December 23, 2020wefru PUC Science 1st Year Chemistry Series-4 quiz 0 Created on December 02, 2020 By wefru 1st PUC Chemistry Series 4 TEST YOUR KNOWLEDGE OF SCIENCE 1 / 10 Q.31n the modern periodic table, the number of period of the element is the same as principal quantum number Atomic mass atomic number azimuthal quantum number 2 / 10 Q.32The correct order for the size of I, I+, I– is I– > I > I+ I > I– > I+ I > I– > I- I > I+ > I+ 3 / 10 Q.33 For the same value of n, the penetration power of orbital follows the order F>d<R<F f<d<F<p f<d<P<R f < d < p < s 4 / 10 Q.34Which of the reactions will need the maximum amount of energy? K+ → K+ ++ e– Na → Na+ Ca+ C2+ → C3+ + e– C2+ → C4+ +e+ 5 / 10 Q.35Which of the following statements is incorrect? The covalent radius of iodine is less than its Van der Waal’s radius The enthalpy of N to gain an electron is almost zero but of P is 74.3 kJ mol-1 I.E.1 of O is lower than that of N but I.E.2 O is higher than that of N isoelectronic ions belong to the same period 6 / 10 Q.36 The correct order of electronegativity is F > O > Cl > Br F>Cl>Br>O O > F > Cl > Br Cl > F > O > Br 7 / 10 Q.37Two different beakers contain M1-O-H, and M2-O-H solutions separately. Find the nature of the two solutions if the electronegativity of M1 = 3.4, M2 = 1.2, O = 3.5, H = 2.1 acidic, basic Basic ,acidic Basic,basic acidic acidic 8 / 10 Q.38. Which one is the most acidic among these? Al2O3 caco3 mgcl Co3 9 / 10 Q.39 Which one will have the highest 2nd ionisation energy? 1s2 2s2 2p4 1s2 2s2 2p6 3s 1s2 2s2 2p6 3s1 1s2 2s2 2p6 3s1 10 / 10 Q.40 C-O bond length is minimum in CO CO3 Caco3 Caco4 Your score isThe average score is 0% LinkedIn Facebook Twitter VKontakte 0% Restart quiz