합성수지(synthetic resine)의 성질 중 틀린 것은?

합성수지(synthetic resine)의 성질 중 틀린 것은?
① 성형이 간단하다.
② 무겁고 약하다.
③ 내산성이 좋다
④ 열에 약하다.

Results (English) 1:

Synthetic resin (synthetic resine) of the nature of the wrong thing?① plastic is simple. ② heavy and weak. ③ can my acid④ column.

Results (English) 2:

It is wrong of the synthetic nature of (the Synthetic RESINE)?
① molding is simple.
② heavy and weak.
③ good acid resistance
④ weak heat.

Results (English) 3:

synthetic resin (synthetic resine) nature of the error.① forming is simple.② heavy and weak.③ acid resistant.④ heat is weak.