Chemistry Test 1 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 Find the temperature at which the rate of effusion of N₂ is 1.625 times to that of SO₂ at 500°C 820°C 620°C 690°C 520°C 2 / 50 Which of the following enzymes converts maltose to glucose? Zymase Diastase Maltase Lactase 3 / 50 Which one of the following is an incorrect statement? The ionization potential of nitrogen is greater than that of chlorine The electronegativity of fluorine is greater than that of chlorine. The electron affinity of fluorine is greater than that of chlorine he ionization potential of beryllium is greater than that of boron 4 / 50 How many calories are in fat……………..? 4 6 9 8 5 / 50 Which of the following is a mixture of low-boiling hydrocarbons? Gasoline Glycerol Propanoic acid Ethanol 6 / 50 In 32.5 g of CH4 the percentage of carbon is....... 84.87%. 74.87%. 77.87%. 54.87% 7 / 50 What is the pH of a solution with 0.0001 M HCl? 0 7 4 3 8 / 50 Mark the correct statement: CI- and CI are equal in size Na+ is larger than Na atom Na+ is smaller than Na atom CI- is smaller than CI atom 9 / 50 According to molecular orbital theory, what is the bond order of Li2+? 1 0.5 5 5.5 10 / 50 Which halogen has the smallest electron affinity? I Br Cl F 11 / 50 The mass of one mole of electron is 1.008 mg 0.184 mg 0.054 mg 0.54 mg 12 / 50 Which of the following is soft Coal? Peat Anthracite Bituminous Lignite 13 / 50 Oxidation state of sodium +4 +5 +8 +1 14 / 50 Which organic compound does not undergo the Cannizzaro reaction? Aldehydes α-Hydroxy aldehydes Ketones Aromatic compounds 15 / 50 Which of the following best describes the nature of ammonium chloride? Strong base Weak acid Strong acid Neutral substance 16 / 50 Which of the species is not paramagnetic? Ne²+ Cl- As+ Be+ 17 / 50 At equilibrium, the amount of product and reactant becomes........ NOT EQUAL increase 2 time EQUAL Increase 4 time 18 / 50 Dipole moment of CO2 is...... 4 2 0 7 19 / 50 Industrial waste water contains: All of these Pathogens Inorganic salts & organic compounds Occluded & dissolved gases 20 / 50 Molarity of 10g of NAOH is...... 1.25 7.32 0 2.43 21 / 50 Which of the following elements react with steam to produce H2 gas? All of the above Pd Ni Sn 22 / 50 On electrolysis of NaOH, hydrogen is liberated in the electrolyte At anode At cathode none of them 23 / 50 Carbon atoms of diamond are: sp2 hybridized Not hybridized sp3 hybridized sp1 hybridized 24 / 50 The whole universe is made up of almostHydrogen? 60% 40% 70% 90% 25 / 50 Number of free electrons in nickel Ni2+ 3 8 2 8 26 / 50 Presence of heavy metals in water causes Nervous disorder All of these Cancer Mental retardation 27 / 50 Which organic compound does not undergo the Cannizzaro reaction? Aromatic compounds Aldehydes α-Hydroxy aldehydes Ketones 28 / 50 The ionization energy of Hydrogen is ? 17.56ev 10.54ev 12.54ev 13.6ev 29 / 50 If absolute temperature of a gas is doubled and the pressure is reduced to one half the volume of gas will: increases two times increases four times decrease two times decrease four times 30 / 50 Structural formula of cycloalkane is..... CnH2n Cn2H5n C8n6Hn8 CnHn 31 / 50 The ratio of the water molecule in plaster of Paris and gypsum is 1:4 1:6 1:8 1:9 32 / 50 __________is study about energy of a chemical system None thermochemistry Biochemistry Organichemistry 33 / 50 Which of the following is the best option for disinfecting your slab? Bleach (Sodium hypochlorite) Sulphur Vinegar (Acetic acid) Phenols 34 / 50 Ionization energy is lowest for Alkali metals Halogens Inert gases Alkaline earth metals 35 / 50 How many structural isomers are present for trichloro propane C3H5Cl3. 5 0 8 3 36 / 50 Brine is used for industrial production of NaOH NHO HCL KCL 37 / 50 How many types of amino acids form the proteins in the body? 60 10 20 30 38 / 50 Oxidation number of CARBON in GLUCOSE is....... 21 6 4 0 39 / 50 Valency of carbon is: 4 6 8 2 40 / 50 Seventh period consists of……………….normal elements? 4 3 8 2 41 / 50 Neutron was discovered by Chadwick in: 1935 1932 1923 1987 42 / 50 Find PH of 0.001m of HCL: 3 2 4 8 43 / 50 Which of the following is more acidic in nature? Phenol Benzene Cresol p-nitrobenzene 44 / 50 The molarity of CH4 is...... 45.042g/mol 16.042g/mol 32.042g/mol 65.042g/mol 45 / 50 Which carbohydrate is the least sweet? Fructose Starch Glucose Sucrose 46 / 50 Benzene is good solvent for: Fats Resins All Iodine 47 / 50 which of the following element have unpaired electrons in s subshell Co Cr Mn Fe 48 / 50 Which of the following elements has the highest electronegativity? Oxygen (O) Nitrogen (N) Fluorine (F) Chlorine (Cl) 49 / 50 MASS of sulpher is....... 72g 23g 32g 92g 50 / 50 “s” and “p” block elements are also called Transition elements Rare earth elements Typical elements Inert elements Your score is 0% Restart quiz
