what is mandrin
a group of related varieties of Chinese
does the group include bejing dialect
Yes
how large is it
by far the largest of the seven or ten Chinese dialect groups
how many tones is it
Most Mandarin varieties have four tones
what language was adopted as national language
Mandarin
what is official language of China
Standard Chinese
how many chinese dialects are there
seven or ten
all they all intelligable
No
how long has capital been within the mandrin
most of the last millennium
how many native speakers
unknown