No, qu is not in the scrabble dictionary
...but would be worth 11 points by itself.
qu
1. An abbreviation of quarter.
abbreviation
1. Question.
noun
1. An abbreviation: of queen, quarterly.
2. An initial and medial sequence in words of Latin origin, as in quarrel, quarrel, quadrant, query, etc.
3. An initial sequence in some Middle English or modern dialectal (Scotch) variants of words regularly spelled with wh-, as in qual, qwaylle, quhal, for whale; quhilk for whilk (which), quhyp for whip, etc.
4. An initial sequence in some words of Anglo-Saxon (or other Teutonic) origin, properly written kw-, or as originally cw-, but altered in the Middle English period to qu- in conformity with the spelling of French and Latin words with qu- (see 1). It occurs in quail, quake, qualm, queen, quell, quick, etc. It does not occur medially except in composition.
5. An initial sequence of various origin other than the above, as in quaint, quassia, quay, quince, quip, quire, quire, quiver, quoin, quoit, etc. See the etymology of these words.