Chemistry Questions

Which one of the following is not a mixture

Which of the following statement(s) is/are CORRECT?

I. Bases are soapy to touch.

II. Bases generate OH– ions.

III. Metal oxides dissolve in water to form Acidic solution. 

Milk of Magnesia is used as a 

Out of all known elements, the minimum number is of ______.

The electronic dot and cross structure of ethene is ............

Which among the following statements are TRUE regarding synthetic fibre?

I. They melt after catching fire.

II. They are more durable.

III. They are prepared by a number of processes using petrochemicals.

What is the general formula of alkenes?

By volume, 21% of air is _______________.