Paper: CSIR-NET December 2017 · Subject: Physical Chemistry · Chapter: Group Theory · Topic: Character Tables · Marks: 2 · Difficulty: Medium
A part of the character table of a point group (of order 4) is given below
E
$X_1$
$X_2$
$X_3$
$\Gamma_1$
1
1
1
1
$\Gamma_2$
1
-1
1
-1
$\Gamma_3$
1
-1
-1
1
$\Gamma_4$
?
?
?
?
The four characters of $\Gamma_4$ are, respectively
Answer
Answer (as printed): A
The options are missing from the source scan for this question, so there is nothing here for this letter to point at. The letter is what the book printed.
Explanation
Orthogonality with Γ₁–Γ₃ gives Γ₄ = (1, 1, −1, −1). The options are not on the crop; the chapter key gives (a).