Introduction to Acid and Base — Science STD 8 — Question

Motor cars are coated with ……… .

Main constituent of alkali is …………….. .

The SI unit of electric charge is the ……………… .

The chloride ion has a ……………. charge.

Fill in the following blanks with suitable words:
Force acting on a unit area is called _______________.

Electrons must absorb …………….. to transit between orbits.

Plasma membrane is said to be a ……………. …………….. membrane as it allows some substances to enter the cell, while prevents other substances.

……………. has ribosome granules on its outer surface.

Fill in the following blanks with suitable words:
The long-distance transmission of television programmes has been made possible with the help of __________ satellites.

Production of RBCs occurs in ……………… .