Home
Class 11
CHEMISTRY
if assertion is false but reason is true...

if assertion is false but reason is true.

A

Changes from `sp^(3)` to `sp^(2)`

B

Remain unchanged

C

Changes from `sp^(3)` to `sp^(3)d`

D

Changes from `sp^(3)` to `sp`

Text Solution

Verified by Experts

The correct Answer is:
b

On `NH_(4)^(+)` state of hybridisation on central nitrogen atom is `sp^(2)` as is in `NH_(3)`
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL BONDING AND MOLECULAR STRUCTURE

    A2Z|Exercise Assertion - Reasoning Questions|6 Videos
  • ATOMIC STRUCTURE

    A2Z|Exercise Section D - Chapter End Test|30 Videos
  • CHEMICAL EQUILIBRIUM

    A2Z|Exercise Section D - Chapter End Test|30 Videos

Similar Questions

Explore conceptually related problems

(a) If both the assertion and reason are true and reason is a true explanation of the assertion. (b) If both the assertion and reason are true but the reason is not the correct explanation of assertion. (c) If the assertion is true but reason is false. (d) If assertion is false but reason is true. Q. Assertion: Pyrrole is an aromatic heterocyclic compound. Reason: It has cyclic delocalised 6pi electrons.

(a) If both assertion and reason are true and the reason is the correct explanation of the assertion 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. Q. Assertion: Amines are basic in nature. Reason: Presence of lone pair of electrons on nitrogen atom.

(a) If both assertion and reason are true and the reason is the correct explanation of the assertion 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. Q. Assertion: Alkyl isocyanides in acidified water give alkyl formamides.

(a) If both the assertion and reason are true and reason is a true explanation of the assertion. (b) If both the assertion and reason are true but the reason is not the correct explanation of assertion. (c) If the assertion is true but reason is false. (d) If assertion is false but reason is true. Q. Assertion: nitration of aniline can be conveniently done by protecting the amino group by acetylation. Reason. Acetylation increases the electron density in the benzene ring.

(a) If both the assertion and reason are true and reason is a true explanation of the assertion. (b) If both the assertion and reason are true but the reason is not the correct explanation of assertion. (c) If the assertion is true but reason is false. (d) If assertion is false but reason is true. Q. Assertion: Oxidation of 1-nitronaphthalene gives o-nitrophthalic acid whereas 1-amino naphthalene on oxidation gives phthalic acid. Reason: An amino group attached to the benzene ring makes it resistant to oxidation whereas nito group makes the benzene ring susceptible to oxidation.

(a) If both the assertion and reason are true and reason is a true explanation of the assertion. (b) If both the assertion and reason are true but the reason is not the correct explanation of assertion. (c) If the assertion is true but reason is false. (d) If assertion is false but reason is true. Q. Assertion: C_2H_5Br reacts with alcoholic solution of AgNO_2 to form nitroethane as the major product. Reason: NO_2^(-) is an ambidient ion.

(a) If both the assertion and reason are true and reason is a true explanation of the assertion. (b) If both the assertion and reason are true but the reason is not the correct explanation of assertion. (c) If the assertion is true but reason is false. (d) If assertion is false but reason is true. Q. Assertion: The following reaction occurs: Reason: The semicarbazone of (A) (pentan-2-one) exists in two geometrical isomers.

(a) If both assertion and reason are true and the reason is the correct explanation of the assertion 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. Q. Assertion: N_3^(-) is a weaker base than NH_2^(-) Reason: The lone pari of electrons on N atom in N_3^(-) is in a sp^2 -orbital while in NH_2^(-) it is in an sp^3 -orbital.

(a) If both assertion and reason are true and the reason is the correct explanation of the assertion 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. Q. Assertion: Methyl cyanide has higher boiling point than methyl isocyanide. Reason: Dipole moment of methyl cyanide is higher than that of methyl isocyanide.

(a) If both assertion and reason are true and the reason is the correct explanation of the assertion 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. Q. Assertion: Benzene diazonium salt n boiling with water forms phenol. Reason: C-N bond is polar.

A2Z-CHEMICAL BONDING AND MOLECULAR STRUCTURE-Section D - Chapter End Test
  1. if assertion is false but reason is true.

    Text Solution

    |

  2. PCI(5) exists but NCI(5) does not because

    Text Solution

    |

  3. Among the following species, identify the isostuctural pairs NF(3). ...

    Text Solution

    |

  4. The bond order in CO(2)^(2-) ion between C - O is

    Text Solution

    |

  5. The order of dipole moment of the following molecules is

    Text Solution

    |

  6. Which of the following resonating structure of N(2)O is the most contr...

    Text Solution

    |

  7. Number of H-bonds formed by a water molecule is:

    Text Solution

    |

  8. The correct order of decreasing C-O bond length of (1) CO,(II)CO(3)^(2...

    Text Solution

    |

  9. In which of the following the central atom does not use sp^(2) hybrid ...

    Text Solution

    |

  10. The number is S - S bonds in sulphar trioxide times S(3)O(9) is

    Text Solution

    |

  11. Bonds presents in CuSO(4) .5H(2)O is

    Text Solution

    |

  12. From the following which group of elements easily forms cation

    Text Solution

    |

  13. The high folowing points and insolution in orgaints solvents of sulph...

    Text Solution

    |

  14. On analysis ,a certain compound was found to cootains iodine and oxy...

    Text Solution

    |

  15. The acid having O - O bond is

    Text Solution

    |

  16. Which of the following does not have a coordinate bond ?

    Text Solution

    |

  17. Which bond angle theta would result in the maximum dipole moment for t...

    Text Solution

    |

  18. In a polar molecule , the ionic charge is 4.8 xx 10^(-10) esu. If the ...

    Text Solution

    |

  19. If the electron pair forming a bond between two atoms and B is not in ...

    Text Solution

    |

  20. Which of the following have both polar and non-polar bonds?

    Text Solution

    |