Q57 of 66 Page 154

In the following questions a statement of Assertion (A) followed by a statement of

Reason (R) is given. Choose the correct option out of the choices given below each question.


Assertion (A): Pent- 1- ene and pent- 2- ene are position isomers.


Reason (R): Position isomers differ in the position of functional group or a substituent.


(i) Both A and R are correct and R is the correct explanation of A.


(ii) Both A and R are correct but R is not the correct explanation of A.


(iii) Both A and R are not correct.


(iv)A is not correct but R is correct.


The two compounds i.e Pent- 1- ene and pent- 2- ene, are position isomers as they differ in the position of the position of the double bond only, as we know that the position isomers have same molecular formula but they differ in the position of functional group or a substituent or the position of the double bond.

Hence, option (i) is correct option.


More from this chapter

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55

In the following questions a statement of Assertion (A) followed by a statement of

Reason (R) is given. Choose the correct option out of the choices given below each question.


Assertion (A): Simple distillation can help in separating a mixture of propan-1-ol (boiling point 97°C) and propanone (boiling point 56°C).


Reason (R): Liquids with a difference of more than 20°C in their boiling points can be separated by simple distillation.


(i) Both A and R are correct and R is the correct explanation of A.


(ii) Both A and R are correct but R is not the correct explanation of A.


(iii) Both A and R are not correct.


(iv) A is not correct but R is correct.


56

In the following questions a statement of Assertion (A) followed by a statement of

Reason (R) is given. Choose the correct option out of the choices given below each question.


Assertion (A): Energy of resonance hybrid is equal to the average of energies of all canonical forms.


Reason (R): Resonance hybrid cannot be presented by a single structure.


(i) Both A and R are correct and R is the correct explanation of A.


(ii) Both A and R are correct but R is not the correct explanation of A.


(iii) Both A and R are not correct.


(iv) A is not correct but R is correct.


58

In the following questions a statement of Assertion (A) followed by a statement of

Reason (R) is given. Choose the correct option out of the choices given below each question.


Assertion (A): All the carbon atoms in H2C = C = CH2 are sp2 hybridised


Reason (R): In this molecule all the carbon atoms are attached to each other by double bonds.


(i) Both A and R are correct and R is the correct explanation of A.


(ii) Both A and R are correct but R is not the correct explanation of A.


(iii) Both A and R are not correct.


(iv) A is not correct but R is correct.


59

In the following questions a statement of Assertion (A) followed by a statement of

Reason (R) is given. Choose the correct option out of the choices given below each question.


Assertion (A): Sulphur present in an organic compound can be estimated quantitatively by Carius method.


Reason (R): Sulphur is separated easily from other atoms in the molecule and gets precipitated as light yellow solid.


(i) Both A and R are correct and R is the correct explanation of A.


(ii) Both A and R are correct but R is not the correct explanation of A.


(iii) Both A and R are not correct.


(iv) A is not correct but R is correct.