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Model Paper 1 — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryModel Paper 11 Mark
MCQ
Assertion (A): The term tautomerism was introduced by Maxwell in order to explain the chemical reactivity of a substance according to two possible structures.
Reason (R): Metamers can also be chain isomers or position isomers.
  • A
    Both A and R are true and R is the correct explanation of A.
  • B
    Both A and R are true but R is not the correct explanation of A.
  • ✓
    A is true but R is false.
  • D
    A is false but R is true.
✓

Answer

Correct option: C.
A is true but R is false.
(c) A is true but R is false.
Explanation: Metamers differ in the nature of alkyl groups attached to the same functional group. e.g. $CH _3- O - C _3 H _7$ (Methyl propyl ether ), $C _2 H _5- O - C _2 H _5$ (Diethyl ether)

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