Home
Class 11
CHEMISTRY
Assertion (A): Be and Mg impart characte...

Assertion (A): `Be` and `Mg` impart characterstic colour to the flame.
Reason (R ): As compared to other alkaline earth metals, ionisation enthalpy of `Be` and `Mg` is low.

A

Statement-1 is True, Statement-2 is True, Statement-2 is a 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:
d

Correct explanation -1 . Be and Mg do not impart any colour to the flame .
Promotional Banner

Topper's Solved these Questions

  • S-BLOCK ELEMENTS (ALKALI AND ALKALINE EARTH METALS)

    PRADEEP|Exercise Assertion -Reason Type Question (Type 2)|19 Videos
  • S-BLOCK ELEMENTS (ALKALI AND ALKALINE EARTH METALS)

    PRADEEP|Exercise Competition Focus JEE (Main and Advance)/Medical Entrance (VII. Numerical Value Type Questions)|1 Videos
  • REDOX REACTIONS

    PRADEEP|Exercise Assertion reason type question|16 Videos
  • SOLID STATE

    PRADEEP|Exercise Advanced problems|19 Videos

Similar Questions

Explore conceptually related problems

Assertion: Be and Mg do not impat characteristic colour to the flame. Reason: both Be and Mg have high ionization energy.

Be and Mg atoms do not impart colour to the flame.

Assertion (A): Alkali metlas impart colour to the flame. Reason (R ): The ionisation energies are low.

The ionisation enthalpy of alkaline earth metals is

Statement 1 : Both Be and Mg don’t impart any characteristic colours to the flame Statement 2 : Both these elements have high value of ionisation enthalpies.

Why do not Be and Mg give characteristic flame colouration while others do ?

Assertion (A): Magnesium does not impart any characteristic colour to the flame. Reason (R ): Due to small size and high effective nuclear charge, magnesium requires a large amount of energy for excitation of electrons.