This question is not about the tones. It is about how do you pronounce the word that starts with a "C".
Above pair of words sound so familiar but I could hear the difference. I don't know whether I repeat it after correctly or not. I have no teacher to hear me out when I repeat it after. So when I pronounce each word that start with a "C" like following, I pronounce it like it starts with the "Ts".
脆 Cuì = Tsuì (my pronunciation)
猜 Cāi = Tsāi (my pronunciation)
藏 Cáng = Tsáng (my pronunciation)
从 Cóng = Tsóng (my pronunciation)
Is that correct?