Question

When the aqueous solution of silver nitrate and sodium chloride are mixed, then what is the colour of precipitate formed.
A.Yellow
B.White
C.Red
D.Black

Answer 1

Hint: The solid substance formed during liquid solution, is known as precipitate.
When silver nitrate reacts with sodium chloride then white coloured precipitate is formed, which is known as silver chloride.

Complete step by step answer:
First of all we will talk about precipitate.
Precipitate: The solid substance formed during liquid solution, is known as precipitate. For example: in the reaction of silver nitrate and sodium chloride, a precipitate of silver chloride is formed which is white in colour. Precipitation can be of any colour like white, yellow, black.
For example: precipitate of iron is green in colour, precipitate of lead is yellow in colour, precipitate of copper is blue in colour, etc.
Now we will discuss that,How we can find that reaction is going on or not:
We can observe changes during the reaction if we want to find whether a reaction is taking place or not. The changes may be of kind:
Change in colour. Some reactions are of the kind which on completion change its colour.
Formation of precipitate: If any precipitate is formed during the reaction, we may conclude that reaction is proceeding.
Change of odour: Some reactions produce smell may be pleasant or bad.
Emission of heat and light: If heat and light is produced during the reaction (known as exothermic reactions) then we can say that reaction is going on.
Now in the question the reaction between sodium chloride and silver nitrate is asked.
The reaction of sodium chloride with silver nitrate is as follows:
$AgN{O}_3+NaCl\to AgCl\downarrow +NaN{O}_3$.
The symbol which is a downward arrow is used to represent the formation of precipitate. And the upward arrow is used to represent the evolution of gas during the reaction. In this reaction white precipitate is formed

so option B is correct .

Note:
Do not taste any compound present in the laboratory of chemistry, because they can harm you. And also be aware while working in the laboratory. For example: if even by mistake hydrochloric acid falls on your skin it may burn it.