Home
Class 11
CHEMISTRY
In the following question, an Assertion ...

In the following question, an Assertion (A) is followed by a corresponding Reason (R). Use the following keys to choose the appropriate answer.
Assertion : In case of `(CH_3)_3N` geometry is pyramidal, but in case of `(SiH_3)_3N` it is planar.
Reason : The maximum covalency of Si is six but that of C is four. : If both (A) and (R) are correct and (R) is the correct explanation of (A)., If both (A) and (R) are correct, but (R) is not the correct explanation of (A)., If (A) is correct, but (R) is incorrect., If both (A) and (R) are incorrect.

A

Statement 1 is True, statement 2 is True, Statement 2 is Correct explanation for Statement 1.

B

Statement 1 is True, Statement 2 is True, Statement 2 is NOT a correct explanation for Statement 1.

C

Statement 1 is True, Statement 2 is False.

D

Statement 1 is False, Statement 2 is True.

Text Solution

Verified by Experts

The correct Answer is:
B

Geometry of `(CH_3)_3 N` is pyramidal due to non-availability of d-orbitals in C, whereas geometry `(SiH_3)N` is planar due to availability of d-orbitals in Si and it forms `(p pi - dpi)` back bonding.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • CHEMICAL BONDING

    BRILLIANT PUBLICATION|Exercise LEVEL-III ( Linked Comprehension Type )|12 Videos
  • CHEMICAL BONDING

    BRILLIANT PUBLICATION|Exercise LEVEL-III ( Matching Column Type )|5 Videos
  • CHEMICAL AND IONIC EQUILIBRIUM

    BRILLIANT PUBLICATION|Exercise Level - III (Linked Comprehension Type Questions)|1 Videos
  • CHEMICAL BONDING AND MOLECULAR STRUCTURE

    BRILLIANT PUBLICATION|Exercise QUESTION (LEVEL -ll)|42 Videos

Similar Questions

Explore conceptually related problems

Assertion : Sodium chloride is used to clear snow on the roads. Reason : Sodium chloride depresses the freezing point of water. a)If both (A) and (R) are correct and (R) is the correct explanation of(A). b)If both (A) and (R) are correct, but (R) is not the correct explanation of (A). c)If (A) is correct, but (R) is incorrect. d)If both (A) and (R) are incorrect.

In each of the following question, an Assertion (A) is following by a corresponding Reason (R ). Use the following keys to choose the appropriate answer. Assertion : The equivalent mass of an element is variable. Reason : It depends on the valency of the element.

Knowledge Check

  • In the following question, an Assertion (A) is followed by a corresponding Reason (R). Use the following keys to choose the appropriate answer. Assertion : BF_3 molecule is planar but NF_3 is pyramidal. Reason : N atom is smaller than B.

    A
    If both (A) and (R) are correct and (R) is the correct explanation of (A).
    B
    If both (A) and (R) are correct, but (R) is not the correct explanation of (A).
    C
    If (A) is correct, but (R) is incorrect.
    D
    If both (A) and (R) are incorrect.
  • Assertion : The free gaseous Cr atom has six unpaired electrons. Reason : Half-filled s-orbital has greater stability. : If both (A) and (R) are correct and (R) is the correct explanation of(A)., If both (A) and (R) are correçt, but (R) is not the correct explanation of (A)., If (A) is correct, but (R) is incorrect., If both (A) and (R) are incorrect.

    A
    If both (A) and (R) are correct and (R) is the correct explanation of(A).
    B
    If both (A) and (R) are correçt, but (R) is not the correct explanation of (A).
    C
    If (A) is correct, but (R) is incorrect.
    D
    If both (A) and (R) are incorrect.
  • Assertion : Iodine is more soluble in CCI_4 than in water. Reason : Non-polar solutes are more soluble in non-polar solvents. a)If both (A) and (R) are correct and (R) is the correct explanation of(A). b)If both (A) and (R) are correct, but (R) is not the correct explanation of (A). c)If (A) is correct, but (R) is incorrect. d)If both (A) and (R) are incorrect.

    A
    If both (A) and (R) are correct and (R) is the correct explanation of(A).
    B
    If both (A) and (R) are correct, but (R) is not the correct explanation of (A).
    C
    If (A) is correct, but (R) is incorrect.
    D
    If both (A) and (R) are incorrect.
  • Similar Questions

    Explore conceptually related problems

    Assertion : Limiting line in the Balmer series has a wavelength of 364.4 mm. Reason : Limiting line is obtained for a jump of electron from n= oo : If both (A) and (R) are correct and (R) is the correct explanation of(A)., If both (A) and (R) are correçt, but (R) is not the correct explanation of (A)., If (A) is correct, but (R) is incorrect., If both (A) and (R) are incorrect.

    Assertion : Actinoids show larger number of oxidation states than lanthanoids. Reason : Highest oxidation state shown by lanthanoids is +4 while that of actinoids is +7. a)If both (A) and (R) are correct and (R) is the correct explanation of(A). b)If both (A) and (R) are correct, but(R) is not the correct explanation of (A). c)If(A) is correct, but (R) is incorrect. d)If both (A) and (R) are incorrect.

    Assertion : Hydrogen has one electron in its orbit but it produces several spectral lines. Reason : There are many excited energy levels available. If both (A) and (R) are correct and (R) is the correct explanation of(A)., If both (A) and (R) are correçt, but (R) is not the correct explanation of (A)., If (A) is correct, but (R) is incorrect., If both (A) and (R) are incorrect.

    Assertion : Lyophilic colloids are called as reversible sols. Reason : Lyophilic sols are liquid loving. : If both (A) and (R) are correct, and (R) is the correct explanation of (A), If both (A) and (R) are correct, but (R) is not the correct explanation of (A), If (A) is correct, but (R) is incorrect, If (A) is incorrect, but (R) is correct

    In the following question, an Assertion (A) is followed by a corresponding Reason (R). Use the following keys to choose the appropriate answer. Assertion : The geometry of XeF_2 and CO_2 are same. Reason : Both the compounds have central atom in sp hybridisation.