Download Zoom Package

To download Zoom package, navigate to Zoom Download Centre,and choose the package for your specific Linux type, OS Architecture and Version of OS. In this case you select Ubuntu as the Linux Type, 64 OS architecture and version 14.04+.
You can download the package as shown below

wget https://zoom.us/client/latest/zoom_amd64.deb

Go to the download location, select the file and right click on it. Click on Open With Software Install from the pop-up menu to open the installation dialog box.

Install Zoom from the terminal

On the desktop, open the terminal. You can find it in the menu, or use the Ctrl+Alt+T keyboard shortcut. If you are logged on to an Ubuntu server, you already have access to a terminal.

sudo apt-get update
     OR
sudo apt-get upgrade

It will ask for a password. You can use your account’s password. You won’t see characters on the screen while typing, so keep on typing your password and hit enter. This will update the packages in Ubuntu.

$ wget -O Downloads/zoom.deb https://zoom.us/client/latest/zoom_amd64.deb

$ cd Downloads
$ sudo dpkg -i zoom.deb

Uninstalling Zoom

If you want to uninstall, run the following command in the terminal.

sudo apt remove zoom

If any error occur's please check app permission.
1.Click the right button of mouse and go to permission tab 
2.Give  Read and Write Access and Tick Mark in Allow executing files as program.