STANDARD TENPART I & IICHAPTER : 8Carbon and its Compounds /15 0 votes, 0 avg 535 SCIENCE AND TECHNOLOGY – Chapter 8 Carbon and its Compounds 1 / 15 Which of the following substance produces brisk effervescence with baking soda solution? Ethanoic acid Table salt Vinegar Sunflower oil 2 / 15 What is denatured alcohol? Ethyl alcohol which has been made unfit for drinking purpose by adding small amount of poisonous substance b) Methyl alcohol which has been made unfit for drinking purpose by adding small amount of poisonous substance Alcohol having properties of an acid Ethyl alcohol containing 60% of water by weight 3 / 15 Ester is formed by the reaction between: An acid and an alcohol An acid and a base A base and an alcohol An acid and an alkene 4 / 15 From which of the following substance pencil lead is formed? Charcoal Wood Lead Graphite 5 / 15 The organic compounds having functional group are known as: Aldehyde Ketone Carboxylic acids Alcohol 6 / 15 Which of the followings is the major constituent of the liquefied petroleum gas? Methane Ethane Propane Butane 7 / 15 How many number of carbon atoms are joined in a spherical molecule of buckminsterfullerene? 30 60 90 120 8 / 15 Which of the following statements about graphite and diamond is true? They have the same crystal structure They have the same degree of hardness They have the same electrical conductivity They can undergo the same chemical reactions 9 / 15 Which of the following is the molecular formula of cyclobutane? C4H10 C4H6 C4H8 C4H4 10 / 15 The property of self-linkage among identical atoms to form long chain compounds is known as: Catenation Isomerisation Superposition Halogenation 11 / 15 Which of the following compounds of carbon does not consist of ions? CHCl3 CaCO3 NaHCO3 Ca2C 12 / 15 The I.U.P.A.C name of CH3CH2CH=CH2 is? 3-Butene Prop-1-ene But-1-ene Butyne 13 / 15 Cation is formed when: Atom gains electrons Atom loses electrons Proton is lost by the atom Atom shares electrons 14 / 15 While cooking, if the bottom of the vessel is getting blackened on the outside, it means that: The food is not cooked completely The fuel is not burning completely The fuel is wet The fuel is burning completely 15 / 15 Which of the following structures correctly represents the electron dot structure of a chlorine molecule? A B C D Your score is 0% Restart quiz