Storage of biological tissues such as blood, organs, semen requires low temperature which is achieved upon the usage of

What is the law in which under the same conditions of temperature and pressure, equal volumes of all gases contain equal number of molecules?

The temperature point at which solid, liquid and gaseous states may stay together is known as

Which one of the following statements is true when non-metals are dissolved in water?

Which of the following is a common refrigerant used in the domestic refrigerator?

Which one of the following elements is a non-metal but is lustrous ?