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