Assertion : ${M e}_{3} ¨ ⊖ C$ is more stable than $¨ ⊖ C H_{3}$ . Reason: The +I effect of the three $M e$ groups in ${M e}_{3} ¨ ⊖ C$ tends to make it more stable than $¨ ⊖ C H_{3}$ .

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Assertion is correct but Reason is incorrect

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Both Assertion and Reason are incorrect

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D Both Assertion and Reason are incorrect
${M e}_{3} ¨ ⊖ C$ is less stable than $¨ ⊖ C H_{3}$ .
This is because, The +I effect of the three $M e$ groups in ${M e}_{3} ¨ ⊖ C$ tends to make it less stable than $¨ ⊖ C H_{3}$ .
Stability of carbanion is decreased by +I effect or by $¯ ¯ ¯ e$ -donating groups as it increases the electron density on C atom.
Thus, both Assertion and Reason are incorrect.

Suggest Corrections

Similar questions

Assertion

Lithium sulphate does not form alums.

Reason

$L i^{+}$ is too small to form a stable lattice required for double-salt/alum formation.

Q. Read the assertion and reason carefully to mark the correct option out of the options given below:
(a) If both assertion and reason are true and the reason is the correct explanation of the assertion.
(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.
(c) If assertion is true but reason is false.
(d) If assertion is false but reason is true.
Assertion: The major products formed by heating

C_{6} H_{5} C H_{2} O C H_{3}

with HI are

C_{6} H_{5} C H

, I and

C H_{3} O H .

Reason : Benzyl cation is more stable than methyl cation.

Assertion (A) Bond angle in ethers is slightly less than the tetrahedral angle.
Reason (R) There is a repulsion between the two bulky (- R) groups.
(a) Assertion and reason both are correct and reason is correct explanation of assertion.
(b) Assertion and reason both are wrong statements.
(c) Assertion is correct statement but reason is wrong statement.
(d) Assertion is wrong statement but reason is correct statement.
(e) Both assertion and reason are correct statements but reason is not correct explanation of assertion.

Assertion (A) p-nitrophenol is more acidic than phenol.
Reason (R) Nitro group helps in the stabilisation of the phenoxide ion by dispersal of negative charge due to resonance.
(a) Assertion and reason both are correct and reason is correct explanation of assertion.
(b) Assertion and reason both are wrong statements.
(c) Assertion is correct statement but reason is wrong statement.
(d) Assertion is wrong statement but reason is correct statement.
(e) Both assertion and reason are correct statements but reason is not correct explanation of assertion.

Q. Assertion
If BOD level of water in reservoir is less than 5 ppm it is not polluted.

Reason
High biological oxygen demand means low activity of bacteria in water.

Join BYJU'S Learning Program

Assertion :Me3¨⊖C is more stable than ¨⊖CH3. Reason: The +I effect of the three Me groups in Me3¨⊖C tends to make it more stable than ¨⊖CH3.

Assertion : ${M e}_{3} ¨ ⊖ C$ is more stable than $¨ ⊖ C H_{3}$ . Reason: The +I effect of the three $M e$ groups in ${M e}_{3} ¨ ⊖ C$ tends to make it more stable than $¨ ⊖ C H_{3}$ .