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