MyQuestionIcon

1

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

Addition Reactions

when a brown ...

Question

when a brown compouund of manganese (A) treated with hcl, a gas (B) is evolved. this taken on excess with nh3 gives an explosive compund (C).identify A, B, C.

Open in App

Solution

Dear Student,

Compound A is MnO₂. The reaction of MnO₂ with HCl is:
MnO₂ + HCl ----> MnCl₂ + H₂O + Cl₂
Cl₂is gas B. When Cl₂ is reacted with NH₃:
Cl₂ + NH₃ ---> NCl₃ + H₂
NCl₃ is compound C, which is an explosive.

Regards

Suggest Corrections

thumbs-up

0

Similar questions

Q. When a brown compound of Mn(A) is treated with

H C l

, it gives a gas B. The gas B taken in excess reacts with

N H_{3}

to give an explosive compound C. The compounds A, B and C are:

Q. A black compound of manganese reacts with a halogen acid to give a greenish yellow gas. When excess of this gas reacts with

N H_{3}

, an unstable trihalide is formed. In this process, the oxidation state of nitrogen changes from :

Q. An organic compound 'A' on treatment with

N H_{3}

gives 'B', which on heating gives 'C'. 'C', when treated with

B r_{2}

in the presence of KOH, produces ethylamine. Compound 'A' is:

Q. An aqueous solution of salt (A), gives white crystalline precipitate (B) with

N a C l

solution. The filtrate gives a black precipitate (C) when

H_{2} S

is passed through it. Compound (B) is dissolves in hot water and the solution gives a yellow precipitate (D) on treating with

N a I

and cooling. The compound (A) does not give any gas with dilute

H C l

but liberates reddish brown gas on heating.

Compound (A) is _________.

When CaCO₃ is treated with HCl, a colourless odourless gas is evolved. The gas is:

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Alkenes - Chemical Properties

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Addition Reactions

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon