MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Nitrogen

A student pla...

Question

A student placed a pellet of $N a O H$ on a watch glass. A few days later, she noticed that the pellet was covered with a white solid. It was due to the formation of $N a_{2} C O_{3}$ .
If true enter 1, else enter 0.

Open in App

Solution

$N a_{2} C O_{3}$ is formed when atmospheric $C O_{2}$ reacts with $N a O H$ . Therefore, the white solid was due to $N a_{2} C O_{3}$ .
Hence, the statement is true.

Suggest Corrections

thumbs-up

0

Similar questions

Q. In the laboratory, where you perform chemistry practical, you would have noticed

N a O H

C a (O H)_{2}

containing reagent bottles with a white coating inside. This coating is due to the formation of

N a_{2} C O_{3}

C a C O_{3}

.

If true enter 1, else enter 0.

Q. "Pellets of KOH becomes wet when exposed to air due to absorption of

H_{2} O

."
Answer whether the above statement is true or false.
If true enter 1, else enter 0.

Q. The reaction used to prepare

N a O H

C a (O H)_{2}

in earlier days is:

N a_{2} C O_{3} + C a (O H)_{2} \to 2 N a O H + C a C O_{3} ↓

If true enter 1, else enter 0.

C a (O H)_{2} + N a_{2} C O_{3} \to C a C O_{3} ↓ + 2 N a O H

This reaction made the basis of manufacturing of NaOH in earlier days and pH of the solution was found to be greater than 14. This indicates that concentration of NaOH is very high. Hence, pH is greater than 14.
If true enter 1, else enter 0.

F e^{3 +}

(aq.) reacts with aqueous KSCN to give a deep red solution due to the formation of

[F e (S C N)^{2 +}]

If true enter 1, else enter 0.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Nitrogen

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon