Chemistry, asked by seriouspotter1812, 4 months ago

State one relevant observations for each of the following

reactions:

(a) Flame test performed on Sodium Chloride

(b) Copper Carbonate is decomposed on heating.

(c) Addition of silver nitrate solution to Sodium chloride

solution.

(d) Blue vitriol is heated in a test tube.

(e) When H2S gas is released.

quick fast answer

seriouspotter1812: ok

Answers

Answered by Vanshikaranawat293

Explanation:

b) CO2 gas is evolved

c) precipitation of silver chloride

d) it looses water of crystallization and becomes anhydrous CuSO4 which is grey white in colour

e) it irritates the mucous membrane of body an d respiratory tract

a) it burns with a orange ‐ yellow flame

Vanshikaranawat293: 2) total mass of urea = 60 and mass of nitrogen = 14 . so there are 2 molecules of nitrogen so mass of 2 molecules of nitrogen = 2× 14 = 28 ,percentage of urea = 28/60 ×100 = 46.6%

seriouspotter1812: thanks

Vanshikaranawat293: welcome

Vanshikaranawat293: vo tumne question post kiya na us pe answer ka option nahi aa raha tha mere ismein islye comment session mein reply diya

seriouspotter1812: ok will you answer this

seriouspotter1812: Column A Column B
Zinc Most active metal
Iron Has no reaction with dil. Acid
Copper React with cold water
forming milky solution.
Potassium Amphoteric metal
Calcium Has valency 2 and 3

Vanshikaranawat293: what to do in this question

seriouspotter1812: i have post question

Vanshikaranawat293: ok

Vanshikaranawat293: zinc = amphoteric metal , iron = has valency 2 and 3 , copper = has no reaction with dilute acid , potassium = most active metal , calcium = react with cold Water forming milky solution

Previous Question

Next Question