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Assertion (A): Tertiary amines are more ...

Assertion (A): Tertiary amines are more basic than corresponding secondary and primary amines in gaseous state.
Reason (R): Tertiary amines have three alkyl groups which cause +I effect.
Select the most appropriate answer from the options given below:

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.

C

A is true but R is false.

D

A is false but R is true.

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Knowledge Check

  • Given below are two statements labelled as Assertion (A) and Reason (R): Assertion (A) : To increase the range of an ammeter, we must connect a suitable high resistance in series to it. Reason (R): The ammeter with in creased range should have high resistance. Select the most appropriate answer from the options given below:

    A
    Both A and R are true and R is the correct explanation of A.
    B
    Both A and Rare true but R is not the correct explanation of A.
    C
    A is true but R is false.
    D
    A is false and R is also false.

  • Given below are two statements labelled as Assertion (A) and Reason (R). Assertion (A): On Increasing the current sensitivity of a galvanometer by increasing the number of turns, may not necessarily increase its voltage sensitivity. Reason (R): The resistance of the coil of the galvanometer increases on increasing the number of turns. Select the most appropriate answer from the options given below:

    A
    Both A and R are true and R is the correct explanation of A.
    B
    Both A and Rare true but R is not the correct explanation of A.
    C
    A is true but R is false.
    D
    A is false and R is also false.

  • Given below are two statements labelled as Assertion (A) and Reason (R). Assertion(A): A magnetic needle free to rotate in a vertical plane, orients itself with its axis) vertical at the poles of the earth. Reason (R): At the poles of the earth the horizontal component of earth's magnetic field will be zero. Select the most appropriate answer from the options given below:

    A
    Both A and R are true and R is the correct explanation of A.
    B
    Both A and Rare true but R is not the correct explanation of A.
    C
    A is true but R is false.
    D
    A is false and R is also false.
    • CBSE MODEL PAPER-SAMPLE PAPER 2023 TERM I-SECTION B
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