Question

Drikold is :
A. solid $C{O_2}$
B. liquid ammonia
C. dry ice and acetone
D. dry ice and isopropyl alcohol

Answer 1

Hint:
As we know solid carbon dioxide is known as dry ice. It is used as a cooling reagent. It has a lots of safety hazards. The dry ice was discovered in the year $1835$ by the French Chemist Charles Thilorier.

Complete step by step answer:
 Drikold is a very important substance, it is very useful to us .The solid carbon dioxide or the dry ice is also known as Drikold. Drikold is used to preserve food. It is used in refrigeration. Drikold is used to freeze food for transportation. It does not alter the taste of the food. Drikold or dry ice are odourless and tasteless. Drikold are produced when the carbon dioxide is cooled and compressed to liquid and then allowed to expand to produce solid carbon dioxide or dry ice. Drikold is also used in laboratories to perform different experiments. From the above explanation it is clear to us that solid carbon dioxide , dry ice and Drikold are the same thing.
So the correct answer of the given question is : A. solid $C{O_2}$.

Additional information: Drikold or the solid carbon dioxide does not have any liquid phase. If we warm the drikold it will not melt or liquify. Dry ice or solid carbon dioxides are very useful for cleaning. Dry ice has more density than water. So it will sink in water and not float like an ice does in water.

Note:Always remember the fact that solid carbon dioxide, dry ice and drikold are the same thing. Dry ice does not have any liquid phase. Dry ice undergoes a sublimation process that means it directly changes from solid phase to vapour phase when heated.