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