Home
Class 12
CHEMISTRY
Assertion:In formaldehyde, all the four ...

Assertion:In formaldehyde, all the four atoms are in the same plane
Reason:The carbon atom in formaldehyde is `sp^3` hybridized

A

Both Assertion and Reason are true and Reason is the correct explanation of Assertion

B

Both Assertion and Reason are true but Reason is not a correct explanation of Assertion

C

Assertion is true but Reason is false

D

Assertion is false but Reason is true

Text Solution

Verified by Experts

The correct Answer is:
C

Since HCHO contains double bond

Meaning one sigma bond and one `pi`-bond . Therefore, the hybridization of carbon here is `sp^2` . Hence, reason is incorrect.
Promotional Banner

Topper's Solved these Questions

  • AIIMS 1998

    AIIMS PREVIOUS YEAR PAPERS|Exercise CHEMISTRY|60 Videos
  • AIIMS 2000

    AIIMS PREVIOUS YEAR PAPERS|Exercise CHEMISTRY|60 Videos

Similar Questions

Explore conceptually related problems

Assertion : In methanal, all the four atoms are in the same plane. Reason : The carbon atom in methanal is sp^2 hybridized.

All fluorine atoms are in same plane in

Assertion : In formaldehyde all the four atoms lie in one plane. Reason : Carbonyl carbon forms a pi -bond with oxygen by overlapping of p -orbitals.

Assertion: All the carbon atoms of buta-1, 3-diene lie in one plane. Reason : All the carbon atoms in buta-1, 3-diene are sp^(2) hybridized.

In which species are all the carbon atoms considered to be sp^(2) hybridized?

AIIMS PREVIOUS YEAR PAPERS-AIIMS 1999-CHEMISTRY
  1. The protons and neutrons in the nuclei of atoms undergo inter-conversi...

    Text Solution

    |

  2. 18 carat gold contains

    Text Solution

    |

  3. Liquid hydrogen is being seriously considered as automobile fuel. It i...

    Text Solution

    |

  4. One a.m.u. is equal to

    Text Solution

    |

  5. The normality of conc. HCl used in the laboratory is

    Text Solution

    |

  6. Which of the following will have least hindered rotation about carbon-...

    Text Solution

    |

  7. Units for the rate constant k of the zero order rate equation are

    Text Solution

    |

  8. Proteins are characterized by the linkage

    Text Solution

    |

  9. Which compound does not dissolve in hot dil. HNO3?

    Text Solution

    |

  10. Which of the following ions is not isoelectronic with the other three ...

    Text Solution

    |

  11. Assertion: Both 12 g. of carbon and 27 g. of aluminium will have 6.02x...

    Text Solution

    |

  12. Assertion:Sucrose is sweetest in taste Reason : Sucrose is converted...

    Text Solution

    |

  13. Assertion (A): Potassium cannot be obtained by the electrolysis of use...

    Text Solution

    |

  14. Assertion: Electrons are ejected from a certain metal when either blue...

    Text Solution

    |

  15. Assertion: Cyclobutane is less stable than cyclopentane Reason : T...

    Text Solution

    |

  16. Assertion:Benzoyl chloride is used for the preparation of derivative o...

    Text Solution

    |

  17. Assertion:In formaldehyde, all the four atoms are in the same plane ...

    Text Solution

    |

  18. Assertion (A) : A spectral line will be seen for 2p(x)-2p(y) transitio...

    Text Solution

    |

  19. Assertion: lt is very difficult to subject vinyl chloride to nucleophi...

    Text Solution

    |

  20. Statement-I : The configuration of B atom cannot be 1s^(2) 2s^(3). ...

    Text Solution

    |