Quiz Medium 4 Categories Quizzes 0 Quiz Medium 4 1 / 25 In the process of preparation of detergents, the organic acids produced are neutralized with sodium nitrate sodium sulphate sodium chloride potaienum hydroxide Sodium hydroxide 2 / 25 The by-product of the process of seponification Glycerol sodium hydroxide glycol Methanol Absolute alcohol 3 / 25 Bromine is used as All above Germicides Oxidization agent Manufacture of dyes and tear gas 4 / 25 The composition of light soda ash is Na2CO3 . 10H2O Na2CO3 anhydrous Na2CO3 . H2O Na2 CO3 . SH2O 5 / 25 The group of algae having no flagellate motile cells at any stage is Rhodophyta Chrysophyta Phaeophyta Chlorophyta 6 / 25 The important condition for the formation of chemical bond is that their electron clouds should not diffuse both atoms should have high electron affinities the process should be accompanied by the lowering in potential energy both atoms should have same ( or similar) electronegativities 7 / 25 NH3 has a net dipole moment; while BF3 has zero dipole moment. This is because NH3 is a planer molecule; while BF3 is a planer molecule NH3 is not a planer molecule; while BF3 is a planer molecule Flourine is more electronegative than nitrogen Born is more electronegative than nitrogen 8 / 25 Which of the following oxo acid of chlorine is the best oxidization agent? HCIO3 HCIO HCIO2 HCIO4 9 / 25 The Cell wall in oomycetes is chemically composed of Euglenophyta Murein ands chitin Carbohydrates Cellulose 10 / 25 Are used as water repellents Carbides Silicates Silicones Silicon 11 / 25 Most of the photosynthesis on earth is tamed by Algae Gymnosperms Angiospersm Kelps 12 / 25 In glass or vitreous state solid the atoms are arranged in All of these none of these Regular fashion Random fashion Linear fashion 13 / 25 Hybridisation involves orbitals of different atoms, but with equal energies orbitals of same atom with slightly different energies orbitals of the same atom, but with widely different energies orbitals of different atoms with different energies 14 / 25 Areal gas van der waals equation will resemble ideal gas it both a and b are small a is a small but b is large a is a large but b is small a is a small but b is a large 15 / 25 Resonance structures of a molecule should have identical arrangements of atoms nearly the same energy content identicals bonding the same number of paired electrons 16 / 25 Which of the following statements is wrong? Covalent compounds have low melting and boiling points Ionic solids do not conduct electricity is solid state Ionic compounds conduct electricity in the fused state Covalent compound are generally soluble is polar solvents 17 / 25 The most important group of producers in marine ecosystem is of Diatoms Euglenoids Dinoflagellates Brown algae 18 / 25 The acetylene molecule contain a Triple bond Coordinate bond Single bond Double bond 19 / 25 Proper proportioning of concrete, ensures Resistance to water All Desired durability Water tightness of the structure 20 / 25 Consider the following dioxide of group 14; 1. CO2 2.SiO2 3. GeO2 4. SnO2 5. PbO2 CO2>SiO2>GeO2>SnO2>PbO2 CO2<SiO2<GeO2<PbO2<SnO2 CO2<SiO2<SnO2<PbO2<GeO2 CO2<SiO2<GeO2<SnO2<PbO2 21 / 25 Example of linear geometry XeF2 CdI2 & AgCl2 BeF2 & HgCI2 All of the above 22 / 25 Lime stone deposits are formed from Apicoplexans Forminifera Actinopods Zooflagellates 23 / 25 Iodine is used is Manufacture of dyes Photography Analgeasic All above 24 / 25 A students gets 50, 60 and 90 marks out of 100. English , physics and economics respectively. He need 72% to get a scolarship. How many marks does he need t6o get in his final paper. Math's to obtain over all 72% marks 82 88 86 84 25 / 25 Metallic bond is treated essentially as in character Ionic Covalent Polar Non polar 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