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