Chemistry Test 3 Please don't use any search browser to find the answer. Just do it yourself so you can measure your knowledge power. Best of Luck! Please! Enter Password 1 / 50 Which of the species is not paramagnetic? NeΒ²+ Be+ Cl- As+ 2 / 50 Which of the following is similar to electron Photons πΌ β rays πΎ β rays π½ β rays 3 / 50 What is the chemical formula of wood spirit? CH3OH C2H6O CH4O2 C3H8O3 4 / 50 The reaction of an acid and metal carbonate willlead to formation? acid + metal carbonate β salt + metal carbonate β salt + water acid + metal carbonate β salt + water + carbon dioxide acid + metal carbonate β salt + water 5 / 50 Which of the species is not paramagnetic? Cl- As+ Be+ NeΒ²+ 6 / 50 Methylformate and acetic acid are which type of isomers. Tautomeric chain isomers Functional Position isomers 7 / 50 skyscraper meaning Canal Building Ground River 8 / 50 The property of carbon chain formation is called Purification Digestion Catenation None 9 / 50 Most abundant element in earth's crust is: Ni N Si Be 10 / 50 Which organic compound does not undergo the Cannizzaro reaction? Ketones Aromatic compounds Ξ±-Hydroxy aldehydes Aldehydes 11 / 50 Marsh gas is Methene Ethane Methane Ethene 12 / 50 Baking powder is: sodium + tartaric sodium bicarbonate + sodium tartaric sodium bicarbonate + Potassium tartaric None 13 / 50 4.184calories=? 176.89joules 17.89joules 76.89joules 6.89joules 14 / 50 Which of the following is more acidic in nature? Benzene Phenol Aniline Cresol 15 / 50 H2SO4 is a/an: ACID Alkaline Acid All of these Base 16 / 50 Valency of carbon is: 3 5 4 6 17 / 50 As the atomic number of the halogen increases, the halogens Lose their outermost electrons less easily Gain electrons less easily Becomes lighter in color Become less dense 18 / 50 The hydrides which are non stoichiometric in nature are Ionic Complex Interstitial Covalent 19 / 50 Cesium and Francium are liquids above 30 o C 15 o C 20 o C 10 o C 20 / 50 Which block of elements are known as transitionelements? None A-block d-block S_block 21 / 50 Oxidation state of sodium +1 +3 +7 +2 22 / 50 How many Faradays of electricity are required to remove one mole of AlCl3? 8 7 3 5 23 / 50 If an object is lying on a horizontal frictionless surface, and the angle is 45 90 0 60 24 / 50 The Celsius scale starts from: 32Β°πΉ 0Β°πΆ 273 πΎ 373 πΎ 25 / 50 nP2=30 where the value of n? 5 6 4 7 26 / 50 The whole universe is made up of almost Hydrogen? 80% 7% 70% 20% 27 / 50 Carbon atoms of diamond are sp7 hybridized sp hybridized sp2 hybridized sp3 hybridized 28 / 50 Cobalt (Co) has ....... unpaired electrons in its 3d orbital. 6 8 3 1 29 / 50 Which of the following is a mixture of low-boilinghydrocarbons? Propanoic acid Ethanol Glycerol Gasoline 30 / 50 Find the temperature at which the rate of effusion of Nβ is 1.625 times to that of SOβ at 500Β°C 660Β°C 520Β°C 320Β°C 620Β°C 31 / 50 which of the following element have unpaired electrons in s subshell Fe Cr Mn Co 32 / 50 The product of the nucleophilic substitution reaction between 2-iodobutane and sodium ethoxide (CH3CH2ONa) is CH3CH2OCH2CH2CH2 CH2CH2OCHCH2CH3 CH2CH2CH3 CH3CH2OCH2CH2CH3 33 / 50 Find the fraction of the total pressure exerted byhydrogen if it is mixed with ethane in an emptycontainer at 25Β°C. 32/16 15/18 15/16 17/16 34 / 50 The element that has a giant covalent structure is: silicon (Si) Diamond All Boron nitride 35 / 50 NMR spectroscopy is used for: Studying the dynamics of molecules None for Magnetic field 36 / 50 Electronic configuration of alkaline earth element is: ns3 ns6 ns ns2 37 / 50 bond energy of hydrogen(H2)is..... 4.3kcal/mol. 105.3kcal/mol. 104.3kcal/mol. 3kcal/mol. 38 / 50 The velocity of photon is: All independent of its mass independent of its time independent of its wavelength 39 / 50 What is the geometry of an H2S molecule? Linear Rectangular Curve Bent 40 / 50 In 32.5 g of CH4 the percentage of carbon is....... 74.87%. 84.87%. 54.87% 77.87%. 41 / 50 Due to the high reactivity nature of the alkali metals, they are found in. Not free in nature Free in nature All of the above Bounded with other elements 42 / 50 The most reactive allotropic form of phosphorus is White Yellow Pink Green 43 / 50 What value is the pH of a 10^-10 M NaOH solution closely related to? 5 7 6 8 44 / 50 The whole universe is made up of almost Hydrogen? 70% 20% 80% 80% 45 / 50 If a man travel 90km in 1 hour and 40 minutes. He will cover 1km in 1.3min 1.11min 1.2min 1.7min 46 / 50 The most reactive allotropic form of phosphorus is: Pink White Yellow Green 47 / 50 If the density of a cube is determined by measuring the mass and length of its side, and the maximum error in measurement of mass and length is 3% and 2% respectively, what will be the maximum error in the measurement of density? 4.2% 9.2% 3.2% 9.2% 48 / 50 Structural formula of cycloalkane is..... CnHn C8n6Hn8 CnH2n Cn2H5n 49 / 50 Most abundant element in earth's crust is: Ni Ne B Si 50 / 50 The energy obtained from electric cells and batteries as a result of a chemical reaction is called: chemical energy Electrical Energy None Potential Energy Your score is 0% Restart quiz
