A. F2
B. Cl2
C. Br2
D. I2
✅ The correct answer is option D.
Chemistry MCQs
The ionization energy
A. Generally increases from left to right in a period
B. Does not change in a period
C. Increase from top to bottom in a group
D. Does not change in a group
✅ The correct answer is option A.
Under what conditions the gases deviate from the ideal behaviour?
A. High-temperature
B. Low temperature
C. High-pressure
D. B and C
✅ The correct answer is option D.
The most powerful oxidizing agent among the halogens is
A. F2
B. Cl2
C. Br2
D. I2
✅ The correct answer is option A.
Which of the following will have the highest value of electron affinity
A. F
B. Cl
C. Br
D. I
✅ The correct answer is option B.
Which one has the lowest density at room temperature?
A. Ne
B. N2
C. NH3
D. CO
✅ The correct answer is option C.
Which of the following statements is incorrect about fluorine
A. Fluorine is restricted to -1 oxidation state
B. Fluorine follows octet rule and as well as extended octet rule
C. Fluorine has the lowest dissociation energy among the halogens
D. Both B and C
✅ The correct answer is option D.
Which type of bond is formed by an overlap of p orbitals
A. Pi (π)
B. Sigma(Σ)
C. Both
D. Neither
✅ The correct answer is option C.
The introduction of the Kelvin scale in thermometry is according to
A. Boyles law
B. Charles law
C. Daltons law
D. Grahams law
✅ The correct answer is option B.
The halogen which reacts spontaneously with gold (Au) to form Au+3 is
A. F2
B. Cl2
C. Br2
D. I2
✅ The correct answer is option B.