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Doha

Organic Chemistry - IGCSE

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Published in: Chemistry
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Organic chemistry discussions for all GCSE and IGCSE students How to name the compounds and how to draw them? Alkanes with branches Also past paper question discussed

Salman F / Doha

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  1. ? 75 ? + ? ? 4 ? ? - ? ? ? ? ? 7 ? ? ) 05 ) ? ? ? ? ? , ? 7 ? ? 53 ~ ? ? ? ? ? 3 ? ? HO ; 0 75J 9T9 ? ? ? ? 01 ? ? Q ? 0 ? ? ? ? 0 ? ? ? 7 5 ? ? 4 % ? s 1 9
  2. 971 ” ? ? ? ? ? V H ? ? ? 01 H ? H ? H ? ” , ? 5 ? ? ? ? ? ? ? ? ¥ ? 0 ? ? ? —_S X ? ? —-1 H ? ? ) ? ? S H ? HO s ? ? ? X ? ? —-1 -C ? 1 ? ? h ?
  3. 32 The displayed formula of an organic compound is shown. To which homologous series does this compound belong? A alcohols B alkanes D carboxylic acids "-v Group Of Of 4 The alkanes are a family of saturated hydrocarbons. Their reactions include combustion, cracking and substitution. (a) What is meant by the term hydrocarbon? C and H containing.fpmpounéi (ii) What is meant by the term saturated? . .D.O..æS..O.'.k..... [1] (b) What is the general formula for the homologous series of alkanes? n......zw.+*. (ii) Calculate the mass of one mole of an alkane with 14 carbon atoms. [21 2 Which compound is not an alkane, CnH2n+2? A D CH3CH2CH2CH3 c (C*HCH3 10 CH3CHCHCH3 CH3)3CHI
  4. 5 The structures of four compounds are shown. w H H x z H Which are members of the same homologous series? A W, X, Y and Z B W and X only W, Y and Z only D X and Z only 8 Ethene, propene and butene are all members of the same homologous series. Which statement explains why ethene, propene and butene have similar chemical properties? B C D They all have the sarne functional group. They are all gases at room temperature. They are all hydrocarbons. They are all organic.
  5. 13 Whjch row represents compounds ?? the same homologous series? ?— —? ?—?—?—? — ? ? ? ? ?—?—?—? — ? ? ? ? ? ?—?—? ? ? ? ? ? ? ? —? ? ? ? ? ? ? —?— ?-
  6. ? ? 4 ? 1 ? ? D ? ? 8 ? ? ? ? ? 7 5 ? ? ? 4 75 ? ) x
  7. Compounds with similiar molecular formulae but different strucutral formulae. ScluA — 0.10, •
  8. ? c ? ? ? ? ~ ? ? ? ? ? 45 ? w ? ? 0 ? ? ? ? ? ? ? ? Ho ? HO ? ? 0 ? HO ? ? 0 ? ? ? ? 0 S1
  9. Draw all the possible isomers ofC5H12 and justify your answer?

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