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