Quiz Hard 4 Categories Quizzes 0 Quiz Hard 4 1 / 30 The ozone layer was discovered by ? Albert Einstein F.W. Aston and J.J Thomson Rutherford Charles Fabry and Henri Buisson 2 / 30 Which from the following is NOT a non-renewable energy resource? Geothermal Coal Nuclear Natural gas 3 / 30 The maximum number of electrons in first energy level are 10 2 8 18 1 4 / 30 …………. is compulsory part of HTML? <tr> <br> <img> 5 / 30 Which one is an alkaline among the following? Acid rain Vinegar Ammonia Saliva 6 / 30 In night, when photosynthesis is stopped, plants ? take in Oxygen give off Carbon Dioxide give off Oxygen take in Carbon Dioxide 7 / 30 She is not willing to reveal the identity of her __________? informant information inform informal 8 / 30 The natural fats and oils are composed of Hydrogen, Oxygen and Nitrogen Carbon, Hydrogen and Oxygen Carbon, Hydrogen and Nitrogen Carbon, Oxygen and Nitrogen 9 / 30 Acid rain is mainly caused by emissions of __________ in the atmosphere? Nitrogen Oxide and Potassium Nitrate Sulfur and Charcoal Sulfur Dioxide and Potassium Nitrate Sulfur Dioxide and Nitrogen Oxide 10 / 30 I __________ what was happening? was not able to understand couldn‘t understand couldn‘t understood was not able to understood 11 / 30 CAI stands for ……………. ? Computer Aided information Computer Aided Infrastructure Computer Aided Instruction Cost Added Information 12 / 30 During winter in cold countries, the __________ is mixed to melt the ice on the icy roads. Salt Water Chlorine Carbon Dioxide 13 / 30 Which of the following operator/function combination. would yield sign value equation? d/dx(ex) d/dx(cos4x) d/dx(sin4x) d/dx(cosx) d/dx(sinx) 14 / 30 …………… displays the information about the active document such as page number, section number, number of pages, insertion point, position, etc. View Bar Status Bar Ruler Line Menu Bar 15 / 30 A hard disk is divided into tracks, which are further subdivided into … ? sectors Clusters vectors heads 16 / 30 The unit used to measure "Pressure"is? tesla watt pascal newton 17 / 30 Which of the following is the slowest in accessing data? magnetic disk hard disk floppy disk zip disk 18 / 30 At constant temperature and pressure, the decrease in Gibbs free energy (F) is equal to Increase in entropy Decrease in entropy Reversible work done by the system Irreversible work done by the system All types of work done expect work of expansion. 19 / 30 Any property whose magnitude is independent of the amount of substance present is called a/an Colligative property Extensive property Intensive property Additive property Structural property 20 / 30 What is the number of periods in which Periodic table is divided? 8 6 7 9 21 / 30 The good sources of Vitamin-C are sea foods seeds green leafy vegetables fresh vegetables and fruits 22 / 30 There are __________ methods of heat transfer? 5 3 4 6 23 / 30 Which of the following statements is not related to VBT It uses only valance electron Individual orbitals lose their identities It treats bond as purely covalent VBT does not explain the paramagnetic nature of molecule VBT uses the concept of resonance 24 / 30 In a very low temperature which from the following will freeze at last? Sea water River water Canal water Water in a lake 25 / 30 Who had performed the world‘s first heart transplant? Christian Bernard None of the above William Harvey Dr. Venugopal 26 / 30 All of the following equations are Maxwell's relations, with one exception. Indicate that exception (s P/sT)V = (sS/sV)T (s T/sV)S = (- sP/sS)V (s V/sT)P= (-sS/sP)T (s T/sP)s= (sV/sS)p (s S/sP)V= (-sT/sV)p 27 / 30 Two isotonic nucicide X and Y have mass. numbers 35 and 37 respectively. If the atomic number of X is 17 the atomic number of Y will be 0.19 0.15 0.13 0.17 0.18 28 / 30 The problem is not _________ to one of internal? reducible reliable reduction reduce 29 / 30 She took lessons __________ how to swim? learn learning for learning to learn 30 / 30 The first chemical explosive, Gunpowder, is a mixture of ? Charcoal and Potassium Nitrate Sulfur and Charcoal Sulfur, Charcoal, and Potassium Nitrate Sulfur, Charcoal and Nitrogen Oxide Your score is Share: Quiz Dad Previous post Quiz Hard 3 October 1, 2022 Next post Quiz Hard 5 October 1, 2022 You may also like Quiz Hard 5 1 October, 2022 Quiz Hard 3 1 October, 2022 Quiz Hard 2 1 October, 2022