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