Originally Posted by
SKRan
There is no dual citizenship in China (including the SARs).
If you British passport says British Citizen, then you don't have Chinese citizenship. And if that's the case, you don't need a visa for USA. Apply for ETA instead.
If your British passport says British National (overseas), you might have Chinese citizenship (but if you're born in the UK, I doubt that's the case).
A HKSAR passport holder may hold a foreign passport although the holder may not be entitled to consular assistance and protection of that foreign country whilst in Hong Kong. Holder of HKSAR passport is a Chinese citizen (of the HKSAR).
OP will unlikely be entitled to a "true" Chinese passport but whether OP is entitled to a HKSAR passport is another matter.