Answer
Verified
401.4k+ views
Hint: Try to recall that sodium is a highly reactive alkali metal and on reaction with water it produces a gas which is the lightest substance known. Now, by using this you can easily find the correct option from the given ones.
Complete step by step solution:
* It is known to you that sodium is a highly reactive metal. That means it has a single electron in its outer shell which is readily lost in reactions, resulting in a much more stable complete outer electron shell.
* When sodium comes in contact with water, hydrogen gas is liberated and sodium hydroxide is generated that dissolved in water. The reaction of sodium with water is as follows: \[2Na(s) + 2{H_2}O \to 2NaOH + {H_2}\].
* The reaction is strongly exothermic, and the heat generated ignites the hydrogen gas.
* A small piece of sodium will dance on the surface of water with a hydrogen flame under and around it.
* A large piece of sodium can sink below the surface of the water, releasing a large amount of hydrogen and heat, resulting in a steam explosion that exposes the hydrogen gas to the atmosphere, where it will also likely explode.
Therefore, from above we can conclude that option B is the correct option to the given question.
Note:
* It should be remembered to you that sodium is kept/ preserved in kerosene so as to avoid its direct contact with the air. This is due to the high reactivity of sodium metal in air.
* Also, you should remember that the solution formed after the reaction of sodium with water is basic in nature due to dissolution of sodium hydroxide in water.
Complete step by step solution:
* It is known to you that sodium is a highly reactive metal. That means it has a single electron in its outer shell which is readily lost in reactions, resulting in a much more stable complete outer electron shell.
* When sodium comes in contact with water, hydrogen gas is liberated and sodium hydroxide is generated that dissolved in water. The reaction of sodium with water is as follows: \[2Na(s) + 2{H_2}O \to 2NaOH + {H_2}\].
* The reaction is strongly exothermic, and the heat generated ignites the hydrogen gas.
* A small piece of sodium will dance on the surface of water with a hydrogen flame under and around it.
* A large piece of sodium can sink below the surface of the water, releasing a large amount of hydrogen and heat, resulting in a steam explosion that exposes the hydrogen gas to the atmosphere, where it will also likely explode.
Therefore, from above we can conclude that option B is the correct option to the given question.
Note:
* It should be remembered to you that sodium is kept/ preserved in kerosene so as to avoid its direct contact with the air. This is due to the high reactivity of sodium metal in air.
* Also, you should remember that the solution formed after the reaction of sodium with water is basic in nature due to dissolution of sodium hydroxide in water.
Recently Updated Pages
Basicity of sulphurous acid and sulphuric acid are
Three beakers labelled as A B and C each containing 25 mL of water were taken A small amount of NaOH anhydrous CuSO4 and NaCl were added to the beakers A B and C respectively It was observed that there was an increase in the temperature of the solutions contained in beakers A and B whereas in case of beaker C the temperature of the solution falls Which one of the following statements isarecorrect i In beakers A and B exothermic process has occurred ii In beakers A and B endothermic process has occurred iii In beaker C exothermic process has occurred iv In beaker C endothermic process has occurred
What is the stopping potential when the metal with class 12 physics JEE_Main
The momentum of a photon is 2 times 10 16gm cmsec Its class 12 physics JEE_Main
How do you arrange NH4 + BF3 H2O C2H2 in increasing class 11 chemistry CBSE
Is H mCT and q mCT the same thing If so which is more class 11 chemistry CBSE
Trending doubts
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
Difference Between Plant Cell and Animal Cell
Select the word that is correctly spelled a Twelveth class 10 english CBSE
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
What is the z value for a 90 95 and 99 percent confidence class 11 maths CBSE
Give 10 examples for herbs , shrubs , climbers , creepers
What organs are located on the left side of your body class 11 biology CBSE
What is BLO What is the full form of BLO class 8 social science CBSE
Change the following sentences into negative and interrogative class 10 english CBSE