Read this: Russian is notable for its distinction based on palatalization of most of the consonants. While /k/, //, /x/ do have palatalized allophones [k, , x], only /k/ might be considered a phoneme, though it is marginal and generally not considered distinctive (the only native minimal pair which argues for /k/ to be a separate phoneme is " " ([t tkt], 'it weaves')/" " ([tt kot], 'this cat')). Palatalization means that the center of the tongue is raised during and after the articulation of the consonant. In the case of /t/ and /d/, the tongue is raised enough to produce slight frication (affricate sounds). These sounds: /t, d, ts, s, z, n and r/ are dental, that is pronounced with the tip of the tongue against the teeth rather than against the alveolar ridge.
Now answer this question, if there is an answer (If it cannot be answered, return "unanswerable"): What does the tongue produce with g and x?
unanswerable