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