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