Questions

_____are attempts by individuals to obtain confidential information from you by falsifying their identity

___ is the number of shells for elements of the 3rd period.

Isotopes have ______.

I. similar physical quantities and different chemical properties

II. different physical properties

III. similar chemical properties

Organs having different structure and components but perform similar functions are called ______.

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.

Which group in the modern periodic table contains elements that are inert gases? 

The process of transferring of charge from a charged object to the earth is called ______________.

The gravitational force of attraction between two bodies is ____________________ the distance between the two bodies.