The word(s) "whichever" appears 2 time(s) in 2 verse(s) in Quran in Muhammad Pickthal translation.

(1) Then We shall pluck out from every sect whichever of them was most stubborn in rebellion to the Beneficent.

(سورة مريم, Maryam, Chapter #19, Verse #69)
(Arabic, Transliteration, Urdu (Ahmed Ali), Urdu (Jalandhry), Farsi, Yusuf Ali, Shakir, Picthal, Mohsin Khan, French, Spanish, Indonesian, Malay, German, Bosnian, Russian, Dutch, Italian, Portuguese, Tafsir - Jalal ad-Din, Tafsir - King Fahad Quran Complex)

(2) He said: That (is settled) between thee and me. whichever of the two terms I fulfil, there will be no injustice to me, and Allah is Surety over what we say.

(سورة القصص, Al-Qasas, Chapter #28, Verse #28)
(Arabic, Transliteration, Urdu (Ahmed Ali), Urdu (Jalandhry), Farsi, Yusuf Ali, Shakir, Picthal, Mohsin Khan, French, Spanish, Indonesian, Malay, German, Bosnian, Russian, Dutch, Italian, Portuguese, Tafsir - Jalal ad-Din, Tafsir - King Fahad Quran Complex)