1 1. Which of the following formulae represent the same compound? (1) CH CH.CH.CHCH; (2) CH (3) CH CHCH CH CHCH.CH CH, C

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1 1 Which Of The Following Formulae Represent The Same Compound 1 Ch Ch Ch Chch 2 Ch 3 Ch Chch Ch Chch Ch Ch C 1 (42.84 KiB) Viewed 29 times

1 1. Which of the following formulae represent the same compound? (1) CH CH.CH.CHCH; (2) CH (3) CH CHCH CH CHCH.CH CH, CH, CH, CH.CH (4) CH.CHCH,CH_CH, (5) CH.CH.CHCH,CH, CH CH A. (2) and (3) only B. (1). (2) and (4) only C. (1), (4) and (5) only D. (1), (2), (3) and (4) only 2. Which of the following structural formulae are WRONGLY written? (1) H 0-0-H (2) но | || ! H-C-C H-C-CO-H 1 H H (3) но H 0 H-C-0-0-H H-0-0-0-H -o-c. 1 H H A. (1) and (2) only B. (3) and (4) only C. (1), (2) and (4) only D. (1), (2), (3) and (4) 3. Candle wax contains an alkane with 28 carbon atoms per molecule. What is the molecular formula of this alkane? A. CH B. CH C. CH D. C3H9 4. Which of the following might be the respective relative molecular masses of four consecutive members of a homologous series? (Relative atomic masses: H = 1.0, C = 12.0, 0 - 16.0) A. 32, 46, 60, 74 26, 38, 50, 62 C. 28, 38, 48, 58 D. 44, 57, 70.83 5. Which of the following is/ are alkene(s)? (1) (2) CH:CH-CH: (3) CH3 -CH-CH-CH: | CH3-C-CH, A. (1) only B. (2) only C. (2) and (3) only D. (1), (2) and (3) B. 0