For the following questions answer them individually
Which of the following statement(s) is/are CORRECT?
I. Metallic oxides are said to be basic oxides.
II. Non-metallic oxides are basic in nature.
III. All acids have similar chemical properti es.
Which of the following occurs due to refraction?
I. The apparent displacement of a pencil, partly immersed in water.
II. Sun appears before the sunrise.
III. Sky appears blue.
What will be equivalent resistance of two resistors $$R_1$$ and $$R_2$$ when connected in series?