What chord can be played at the 7th fret of the 2nd string?

The chord that can be played at the 7th fret of the 2nd string is B.

To understand this, it’s important to recognize the tuning of the guitar. The 2nd string of a guitar is tuned to B. When you play the 7th fret of the 2nd string, you are raising the pitch of the open B note by 7 half steps, which results in the note F#.

In the context of building chords, an F major chord would require the notes F, A, and C. While you can find an F major chord in various positions on the fretboard, it will not originate primarily from the 2nd string at the 7th fret.

The other chord options also do not correlate directly with playing a chord on the 2nd string at the 7th fret. G major consists of the notes G, B, and D; A major consists of A, C#, and E; and a B major chord is developed from the notes B, D#, and F#. The note being played on the 2nd string at the 7th fret, F#, can serve as a root for a B chord when considered in the context of a complete chord