Which is denser than kerosene?
Here, the saadhya is the denser nature of lead in comparison with kerosene. The hetu cited has two parts – greater density of lead shots in comparison with water and lesser density of kerosene in comparison with water.
Does sodium float on kerosene?
Explanation. Sodium is a highly reactive metal and reacts vigorously with the oxygen, carbon dioxide and moisture present in the air such that it may even cause a fire. To prevent this explosive reaction, Sodium is kept immersed in kerosene because Sodium doesn’t react with kerosene.
Which is denser water or kerosene Why?
As kerosene has more refractive index than water, it is optically denser. The mass density of kerosene is less than water, so kerosene drops will float in water, when both are mixed.
Why sodium is stored in kerosene rather than water?
It reacts with oxygen present in the air to produce sodium oxide at room temperature. So, it catches fire and begins to burn when it is present in the open air. It also reacts with water to form hydrogen gas that rapidly catches fire. … Hence, we can store sodium in kerosene but not in water.
Why kerosene does not mix with water?
Hint: Kerosene is oil and water is a polar solvent. The insolubility of kerosene is due to the fact that like dissolves like and hydrocarbons and water both are unlike. … Also, Kerosene is lighter than water and floats on its surface rather than getting dissolved. Therefore, these are called immiscible liquid.
What is sodium kept in kerosene?
Sodium and Potassium are highly reactive metals and react vigorously with the oxygen, carbon dioxide and moisture present in the air such that it may even cause a fire. To prevent this explosive reaction, Sodium is kept immersed in kerosene because Sodium doesn’t react with kerosene.
Why Sulphur is kept in kerosene?
It is kept in kerosene to prevent it from coming in contact with oxygen and moisture. If this happens, it will react with the moisture present in air and form sodium hydroxide which is a highly exothermic reaction.
Why is lithium kept under kerosene oil?
Lithium cannot be stored in kerosene oil , because it is the lightest metal and it floats on its surface and react with air . Therefore it is kept wrapped in paraffin wax. … Except Be and Mg , all other s – block metals impart color to the flame due their low ionization potential.
Why can a ship float on water?
The answer to why ships can float comes from the famous principle of Archimedes which says that the net upward force on an object immersed in water is equal to the weight of the water displaced by the object.
Why sodium is kept dipped in water?
Sodium reacts both with air and water. It is a highly reactive metal. When kept in open, it readily combines with oxygen present in air to form its oxide. Similarly, it reacts with water or moisture to form sodium hydroxide.
Why sodium should kept away from water?
Sodium can not be stored in water because Reaction of sodium and water is highly exothermic. During this reaction hydrogen gas is produces which catches fire due to heat released during reaction.
Is sodium stored in water?
Sodium metal is highly reactive with water generating flammable hydrogen gas and sufficient heat to cause ignition. It is essential that sodium is stored so that it cannot come into contact with water, including moisture in the atmosphere. Sodium is usually supplied under paraffin oil or under kerosene.