Classification of Elements and Periodicity in Properties – Chemistry | NEET Online Mock Test | Leave a Comment / Blog / By admin Online Mock Test Description Mock TestClassification of Elements and Periodicity in PropertiesExamNEET Medical TestSubjectChemistry Marks100No. Questions50 QuestionsTime50 Minutes 1 Sorry! Time up Classification of elements and periodicity in properties - NEET (Chemistry) Learn more! Practice more! Score more!Best of Luck! 1 / 50 F-, Na+ and Mg+2 are isoelectronic species. Which one is correct?All have the same sizeMg+2 has a minimum effective nuclear chargeF- have the smallest sizeMg+2 has a maximum effective nuclear charge 1 2 3 4 2 / 50 Nb belongs to the 5th period while Ta belongs to the 6th period. Which one is correct? Size of Ta is greater than the size of Nb Size of Nb is greater than the size of Ta Both have almost equal size Nb belongs to d-block element while Ta belongs to f-block element 3 / 50 Which one is not an endothermic reaction?O- + e- --> O-2O+ --> O+2 + eO --> O+ + e-O + e- --> O- 1 2 3 4 4 / 50 Some neutral atoms have electronic configurations as follows: A = 1s22s22p1, B = 1s22s2, C = 1s22s22p63s1, D =1s22s22p3. In which of these electronic configurations would you expect to have the lowest 1st IP? A B C D 5 / 50 Order of 1st IE of elements of the second period isLi<Be<B<C<N<O<FLi<B<Be<C<O<N<FBe<Li<B<C<N<O<FBe<Li<C<B<N<F<O 1 2 3 4 6 / 50 In Pauling's scale, the electronegativity values of two elements A and B are found to be 3.0 and 0.7 respectively. Calculate the percentage ionic character of the compound formed. 55.3% 60% 75% 20.2% 7 / 50 The electronegativity of the following elements increases in the orderSi < P < C < NN < Si < C < PP < Si < N < CC < N < Si < P 1 2 3 4 8 / 50 Find the group and period in the periodic table of elements having atomic number 29 11,3 12,4 11,4 12,3 9 / 50 Effective nuclear charge is increased on going from Li to Na Na to K K to Rb Rb to Cs 10 / 50 Select the Vanderwaals radio which is the largest Ne Ar Kr Rn 11 / 50 Due to lanthanide contraction Basic Strength of hydroxides in lanthanides series decreases Basic Strength of hydroxides in lanthanides series increases Basic Strength of elements in lanthanides series remain constant Basic strength 1st decreases and then increases 12 / 50 1st IP of elements of the Boron family isB > AI > Ga >ln>TIB Ga <ln<TIB > TI > Ga > AI > InB > TI > Ga > In > AI 1 2 3 4 13 / 50 From the graph which is correct Element A is Boron Element C is Argon Element D is Sulphur Element B is Oxygen 14 / 50 Select the one that has the highest value of the 2nd IP of the given element1s22s22p63s21s22s22p63s11s22s22p61s22s1 1 2 3 4 15 / 50 The element of 3rd period that has the highest electron affinity is S P Cl Sl 16 / 50 According to Allred and Rochow's scale, the slope of the following graph is given as ( tilde En : Electronegativity) 0.744 0.359 7.44 74.5 17 / 50 Select the order that is correct regarding the increasing order of electronegativityM+3 < M+2 < M+1 < MM < M-1 < M-2 < M-3M-3 < M-2 < M-1 < MM+3 = M+2 = M+1 < M 1 2 3 4 18 / 50 Which of the following ion is the largest in size?N3-O2-Al+3Mg+2 1 2 3 4 19 / 50 In which of the following options both pair of elements have more or less, the same atomic radius? Cl and Li O and N Zr and Hf Yb and Ce 20 / 50 Select the correct order of IE, among the followingLi < Na < KK > CaN < OHe < Ne <Ar 1 2 3 4 21 / 50 Select from the following that has maximum negative Electron gain enthalpyA(g) + e- + 60kJ --> A-B(g) + e- + 400kJ --> B-C(g) + e- --> C- +140kJD(g) + e- --> D- + 60kJ 1 2 3 4 22 / 50 Select the one that has the highest Bond energyF2Cl2Br2I2 1 2 3 4 23 / 50 The position of Co in modern periodic table is 1 2 3 4 24 / 50 Which one has the minimum effective nuclear charge Li Na K Cs 25 / 50 Which of the following has a minimum covalent radius? B C N Be 26 / 50 Which of the following elements have positive electron gain enthalpy He Be N All of these 27 / 50 In the gaseous phase, which of the following has the highest ionic size for identical coordination number?Li+(g) Na+(g) K+(g) Cu+(g) 1 2 3 4 28 / 50 An element (z = 112) belongs to which period and which group? 7th period, 12th group 7th period, 10th group 6th period, 12th group 6th period, 9th group 29 / 50 Which of the following is(are) consequence(s) of Lanthanide contraction ? The sizes of the ions decreases across the 4f series The sizes of 4d and 5d series elements are almost the same Across the 4f series the basicity of hydroxides decreases All of these 30 / 50 The first ionisation potentials (eV) of Be and B are respectively 8.29 eV, 9.32 eV 9.32 eV, 9.32 eV 8.29 eV, 8.29 eV 9.32 eV, 8.29 eV 31 / 50 A sudden jump between the values of second and third ionisation energies of an element would be associated with the electronic configuration1s22s22p63s11s22s22p63s11s22s22p61s2 2s2 2p6 3s2 1 2 3 4 32 / 50 The correct order of second ionisation potential isIE2(Mg) > IE2(Al)IE2(Na) > IE2(Mg)IE2(Al) < IE2(Si)IE2(N) > IE2(O) 1 2 3 4 33 / 50 Of the following elements, which possess the highest electron affinity? Te O S Se 34 / 50 Which of the following has the highest 2nd IE? Li Be F N 35 / 50 The most electronegative chlorine is present inHCIO2HCIO3HCIOHCIO4 1 2 3 4 36 / 50 Among the oxides given below, how many of them are acidic oxides?MnO, CO2, NO2, N2O5, CO, N2O 2 3 4 5 37 / 50 The correct order of electron affinity isF > CI > Br > IS > Se > Te > Po > OO > S > Se > Te > PoCI > Br > F > I 1 2 3 4 38 / 50 Which of the following has the correct order of ionic radii?O2- > F- > Na+ > Mg2+Mg2+ > Na+ > O2- > F-Mg2+ > Na+ > F- > O2-O2- > F- > Mg2+ > Na+ 1 2 3 4 39 / 50 Which of the following statements is incorrect The first ionisation energy of N is greater than that of O The second ionisation energy of O is greater than that of N The first lonisation energy of F is greater than that of Ne The first ionisation energy of He is greater than that of Ne 40 / 50 Which of the following statements is correct?The bond energy of the Cl-C bond is less than the bond energy of the F - F bondThe bond angle in H2O is less than that in OF2The bond order of the C-C bond in C6H6 is less than the bond order of N2O2 is more stable than N2 1 2 3 4 41 / 50 Which of the following is the correct order of negative electron gain enthalpy of halogens?F > CI > Br > ICl> Br>I>FCl > F > Br > ICI > Br > F > I 1 2 3 4 42 / 50 Which of the following has positive electron gain enthalpy ? Li O Cl Ne 43 / 50 Which of the following has maximum electronegativity? Cl O N F 44 / 50 Both a and b are independent of the material a is independent but b depends on the material b is independent but a depends on the material Both a and b depend on the material 45 / 50 Which of the following isolated gaseous ions is most stable ?Fe2+Fe+Fe3+V2+ 1 2 3 4 46 / 50 Which of the following elements of group 13 has the least ionization enthalpy value? Tl B Al In 47 / 50 Which of the following has the lowest first ionization energy? C Si Sn Pb 48 / 50 Which of the following is different from the other three oxides? SnO ZnO PbO BaO 49 / 50 Which of the following is/are correct regarding the first negative electron gain enthalpy value?S > 0P > NCl > FAll Of These 1 2 3 4 50 / 50 Identify correct statements All ionisation enthalpy values are positive First electron gain enthalpy values of representative elements are negative, except those of Be, N and Mg First electron gain enthalpy value of Noble gases are high positive All are correct statements Your score isThe average score is 24% 0% Restart quiz NEXT CHAPTER: Chemical Bonding and Molecular Structure