Question

Which version of extensible hypertext markup language (xhtml) is not backward compatible with html?

a. True
b. False questions?

Answer 1

XHTML extended version 2.0 is less compatible to HTML.

Step-by-step explanation:

HTML5 and XHTML5 serializations are largely incompatible because of XHTML5 syntax, there are some cases in which XHTML will not work as valid HTML5. For instance processing instructions are different in HTML.

Answer 2

XHTML stands for EXtensible HyperText Markup Language. It is almost identical to HTML, but is stricter than HTML. XHTML is HTML defined as an XML application and it is supported by all major browsers. The version of extensible hypertext markup language (XHTML) v 2.0 is not backward compatible with HTML.