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(2111) Question Category: Multiple choices

The following equation is a propagation step in the chlorination of methane:
     A. Cl_2 ightarrow Cl^ullet +Cl^ullet

  1. CH_3^ullet + Cl^ullet ightarrow CH_3Cl
  2. CH_3^ullet + Cl_2 ightarrow CH_3Cl + Cl^ullet
  3. CH_4 + Cl^ullet ightarrow CH_3Cl + H^ullet
  4. CH_3^ullet + Cl_2 ightarrow Ch_2Cl + Cl^ullet .

Answer / Solution

UNSOLVED

(2112) Question Category: Multiple choices

C_2H_4Cl  can be represented in different structures which are called

  1. homologous series
  1. isomers
  2. structural formulae
  3. identical structures
  4. condensed structures.

Answer / Solution

UNSOLVED

(2114) Question Category: Short answers

Consider a four carbon hydrocarbon (C_4H_n), where n is an integer. Give the name of homologous series, molecular formula and structural formula for different isomers of the compound formed by each homologous. In each case indicate the causes of isomerism.

Answer / Solution

UNSOLVED

(4327) Question Category: Multiple choices

Which of the following compounds does NOT belong to the alkenes homologous series?

  1. C_{2}H_{4}
  2. C_{3}H_{6}
  3. C_{4}H_{8}
  4. C_{5}H_{10}
  5. C_{6}H_{14}

Answer / Solution

UNSOLVED

(4331) Question Category: Multiple choices

Which equation represents the combustion of methane with the products collected at 120°C?

  1. CH_{4(l)} + 2O_{2(g)} ightarrow CO_{2(g)} + 2H_{2} O (l)
  2. CH_{4(g)} + 2O_{2(l)} ightarrow CO_{2(g)} + 2H_{2} O (l)
  3. CH_{4(g)} + 2O_{2(g)} ightarrow CO_{2(g)} + 2H_{2} O (g)
  4. CH_{4(l)} + 2O_{2(l)} ightarrow CO_{2(l)} + 2H_{2} O (g)
  5. CH_{4(l)} + 2O_{2(g)} ightarrow CO_{2(g)} + 2H_{2} O (g)

Answer / Solution

UNSOLVED

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