1. It is colourless, tasteless and odourless gas.
2. It is insoluble in water
3. It has no effect on litmus paper
4. It is the lightest known as
5. It has very low boiling point of -253°c.
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action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /usr/www/users/mywaecf/KEYPOINT/wp-includes/functions.php on line 61211. It is colourless, tasteless and odourless gas.
2. It is insoluble in water
3. It has no effect on litmus paper
4. It is the lightest known as
5. It has very low boiling point of -253°c.