Which is the formula of an alcohol? Which of the following would be most water s

Question

Which is the formula of an alcohol? Which of the following would be most water soluble: an alcohol an alkane an alkyl halide an alkene What bonds are present in ethylene? Four sigma bonds and one pi bond five sigma bonds and one pi bond six sigma bonds and one pi bond six sigma bonds Which has the highest boiling point (n- means it is a straight chain)? n-heptane C_7H_16 n-hexane C_6H_14 n-pentane C_5H_12 n-butane C_4H_10 The correct name for this compound is heptane 2-methylhexane 1-methyl-2-metylpentane 2, 2-dimethylpentane

Explanation / Answer

43) Answer - B) CH3 - CH2 - CH2 - CH2 - OH

alcohol contain fuctional group -OH

44) Answer - A) alcohol

alcohol contain finctional group -OH which form hysrigen bond with water.

45) Answer - B) five sigma bond and one pi bond

sigma bond C - H = 4

C = C = 1

total 5 sigma bond

pi bond C = C = 1 pi bond

46) Answer A) n-heptane C7H16

boiling point of alkane increases as number of carbon increases in chain

47) Answer - D) 2,2-dimethylpentane

longest chain contain 5 carbon atom and nubering start from end which is nearest to branching thus two methyl group come at 2 and 2 possition therefore name of compound is 2,2-dimethylpentane

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