Quiz Medium 4 Categories Quizzes 0 Quiz Medium 4 1 / 25 Of the following, which one has glassy shells? Radiolarians none Forams Both of these 2 / 25 Which of the following in planar? C2H2 CH4CI2 CHCI3 CCI4 3 / 25 The atomic and ionic radii value on moving from left to right in the series Decrease Does not change Increase None of above 4 / 25 Graphite is a good conductor of electricity, because it Has free atoms is crystalline Has sp2-hybridization carbon atoms Has free electrons 5 / 25 Choanoflagellates are named so because of presence of Ciliated cells Collared flagellated cells Flagellated cells Collared cells 6 / 25 HCIO2 gives the structure Angular Linear Trigonal pyramidal Tetra hedral 7 / 25 The ion that is isoelectronic with CO is N2+ O2+ CO2_ CN_ 8 / 25 The unit of sodium chloride structure is Cubic Square planner Linear Tetrahedral 9 / 25 Which of the following species have undistorted octahedral structures? XeF6 SF6 PF6_ SiF62_ 10 / 25 On hybridisation of one s and one p orbitals we get Two orbitals at 1800 Two mutually perpenduicular orbitals Four orbitals directed tetrahedrally Three orbitals in a place 11 / 25 The hybridisation of sulphur in sulphur dioxide is sp dsp2 sp2 sp3 12 / 25 Which compound shows hydrogen bonding C2H5OH C2H5CI C2H6 CH3-O-CH3 13 / 25 Cement containing higher percentage of gypsum than required Sets slowly Gets higher strength Has no effect Does not set at all Sets rapidly 14 / 25 Variable electrovalency id due to the following reasons Inert electron pair effect All of the above Unstable configuration of core None of above 15 / 25 The flouride tooth-paste contains SnF2 and SN2P2O7 H2(SiF6) CaF2 NaF 16 / 25 The actinopods with glassy shells are Radiolarians foramniferans Ciliates apicomplexans 17 / 25 The correct order of increasing polar character is H2O<NH3<H2S<HF NH3<H2O<HF<H2O H2S<NH3<H2O<HF HF<H2O<NH3<H2S 18 / 25 The atomicity of one molecule of Hemoglobin is 60000 100000 10000 17000 19 / 25 Molecules have zero dipole moment BCI3 CH4 & CCl4 CO2 All of above 20 / 25 Flourine does not show variable oxidation state, because of Its high electronegativity Its small size Low dissociation energy of F-F bond Non-availability of d-orbitals 21 / 25 On industrial scale chlorine is prepared by Deacon's process Plantner's process Aludels process Dennis method 22 / 25 Cement is a mixture of Limestone and clay Clay limestone and gypsum Binder Clay and clinker Limestone and gypsum 23 / 25 Which of the following salt is green in colour? Co salt Cr salt Ba salt Mn salt 24 / 25 An example of AX2E3 type compound is AsF ICI4 XeF4 I3- 25 / 25 ___________ is best in its cleaning action All of these Soap None of these Surfactant Detergent Your score is Share: Quiz Dad Previous post Quiz Medium 3 October 1, 2022 Next post Quiz Medium 5 October 1, 2022 You may also like Quiz Hard 5 1 October, 2022 Quiz Hard 4 1 October, 2022 Quiz Hard 3 1 October, 2022