Magnesium reacts with an element (X) to form an ionic compound.
If the ground state electronic configuration of (X) is 1s22s22p3,
the simplest formula for this compound is: 

1. Mg2X3

2. MgX2

3. Mg2X

4. Mg3X2

Subtopic:  Nature of Compound |
 74%
From NCERT
NEET - 2018
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The incorrect match among the following is:

1. B < C < N < O (increasing first ionisation enthalpy)

2. I < Br < F < Cl (increasing electron gain enthalpy)

3. Li < Na < K < Rb (increasing metallic radius)

4. Al3+ < Mg2+ < Na+ <F- (increasing ionic size)

Subtopic:  Electron Affinity (EA) |
 75%
From NCERT
NEET - 2016
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Which one of the following orders is correct for the bond dissociation enthalpy of halogen molecules?

1. Cl> Br> F> I2

2. Br> I> F> Cl2

3. F> Cl> Br> I2

4. I> Br> Cl> F2

Subtopic:  Electron Affinity (EA) |
 54%
NEET - 2016
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints