Hydrocarbons CBSE XI Quiz

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Alkanes & projections

Mr Sreejith LN

India

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Hydrocarbons CBSE XI Quiz


Hydrocarbons CBSE XI QuizVersión en línea Alkanes & projections por Mr Sreejith LN 1 What is the general formula of alkanes? a CnH2n+1 b CnH2n+2 c CnH2n+4 d CnH2n 2 Which reagent is commonly used to synthesize alkanes via hydrogenation? a O2 with platinum catalyst b Cl2 under UV light c NH3 with heat d H2 with nickel catalyst 3 In a Newman projection, the view is along which bond? a Across a functional group b Along a C-H bond c Across a ring edge d Along the C-C bond 4 Which statement about alkanes' boiling points is true? a Boiling point is constant b Alkanes have identical boiling points c Boiling point falls with chain length d Boiling point rises with chain length 5 Which reaction best converts alkenes to alkanes? a Halogenation b Hydration c Hydrogenation d Nitration 6 How does increasing branching affect alkane boiling point? a Increases melting point only b No effect c Raises the boiling point d Lowers the boiling point 7 What is a key difference between Sawhorse and Newman projections? a Sawhorse uses orbitals b Newman uses chair conformations c Sawhorse is 2D only d Newman is viewed along a C-C bond 8 Are alkanes saturated or unsaturated hydrocarbons? a Polynuclear b Aromatic c Saturated d Unsaturated 9 Name a simple alkane example. a Benzene b Methane c Ethyne d Ethene 10 Which of the following is an alkane? a Butadiene b Propene c Propane d Propyne