Quiz Medium 5 Categories Quizzes 0 Quiz Medium 5 1 / 25 In nature nickel is found in the form of Sulphides Silicates All Arsenides 2 / 25 Reynolds's number is used to describe the type of flow of a liquid. Which of the following equations define properly this parameter? 3rd v' / n 4rd v' / n rd v' / n 5rd v' / n 2rd v' / n 3 / 25 Which of the followings have +3 oxidation states Al and TI B and Al B and In In and TI 4 / 25 Which one of the following statements regarding BF3 is not correct? It is an electron-deficient compound It forms adducts It is an ionic compound It is a Lewis acid 5 / 25 Which of the following statement is incorrect? An alloy is a mixture of two or more metal and non-metal elements that have metallic properties An alloy is a mixture of two or more metals An amalgam is an alloy containing Hg An alloy has a fixed composition 6 / 25 Which of the following is not a characteristic of solids? Definite mass Rigidity Fluidity Definite shape Definite volume 7 / 25 A minor constant is one whose amount in the sample is 0.01 to 1% 1 to 10% None of the above 0.1 to 1% 8 / 25 A pH of a neutral solution at 100°C when Kw = 1.0 x 10-12 is 6 2 7 12 9 / 25 A reactive methylene group is a methylene group present between Carbonyl groups Electron Donating groups Amino groups Hydroxyl groups 10 / 25 The maximum noise level at which a man can work for 8 hours is 80 dB 100 dB 60 dB 90 dB 70 dB 11 / 25 Which element out of the following can exhibit a maximum co-valency of seven? Fluorine Sulphur Chlorine Both Cl and F 12 / 25 Different arrangements of groups in space which can be converted into one another by rotation around a single bond are called All above Conformations Configuration Enantiomers Metamers 13 / 25 Which of the following properties of a system does not change in a state of equilibrium? Pressure Concentration Density All of the above Colour 14 / 25 The fore of friction (F) between two cylindrical layers each of 'A' cm2 separated by 'I' cm having a velocity difference v ms-1 is given by F= n A / l F= n lv F= n lv / A F= n Avl F= n Av / l 15 / 25 Which of the following is not a pyrimidine base? Uracil Thymine Guanine Cytosine 16 / 25 The particles would be stationary in lattice only at 373K 473K 298K 0K 273K 17 / 25 Poise is a unit of Refractive index Fluidity Optical activity Viscosity Rheochar 18 / 25 Which of the following process is not sorbent separation technology? Molex Penex Olex Parex 19 / 25 tereoisomers not related to each other as object and minor image are called Enantiomers Antipodes Diastereoisomers Conformations 20 / 25 Aluminium is used for All above Making alloys Making utensils & frames Reducing agent 21 / 25 Ethyl acetoacetate may be used to prepare Carboxylic acids Ketonic acids Ketones All of these 22 / 25 Among alkali metals, the least metallic element is Cs Rb Na Li 23 / 25 The alkali metal with highest melting point is K Cs Na Li 24 / 25 Which of the following is not it property of aluminium? A low density compared to other metals An efficient electrical conductor Toxic to humans Is amphoteric 25 / 25 The reactions of carbonyl group are Electrophilic additions Nucleophilic addition Nucloephilic substitutions Free radical addition Your score is Share: Quiz Dad Previous post Quiz Medium 4 October 1, 2022 Next post Quiz Hard 1 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
