https://padlet.com/subhoshree15/PC39D Part-3 en-us 2021-01-15 04:16:46 UTC 2023-02-21 07:24:21 UTC hello@padlet.com subhoshree15 https://padlet.com/subhoshree15/PC39D/wish/1089968918 2021-01-15 04:16:46 UTC https://padlet.com/subhoshree15/PC39D/wish/1089968918 subhoshree15 https://padlet.com/subhoshree15/PC39D/wish/1089968921 2021-01-15 04:16:46 UTC https://padlet.com/subhoshree15/PC39D/wish/1089968921 anushka1182 https://padlet.com/subhoshree15/PC39D/wish/1090013323 - a  brown gas is formed.  
- CuO is black ]]> 2021-01-15 04:59:43 UTC https://padlet.com/subhoshree15/PC39D/wish/1090013323 https://padlet.com/subhoshree15/PC39D/wish/1090013919 if u burning splinter is introduced it starts burning duue to the presence of oxygen]]> 2021-01-15 05:00:20 UTC https://padlet.com/subhoshree15/PC39D/wish/1090013919 https://padlet.com/subhoshree15/PC39D/wish/1090013999 turns moist blue litmus red (acidic in nature)

]]> 2021-01-15 05:00:24 UTC https://padlet.com/subhoshree15/PC39D/wish/1090013999 pratika1116 https://padlet.com/subhoshree15/PC39D/wish/1090014198 It turns moist blue litmus paper red

]]> 2021-01-15 05:00:37 UTC https://padlet.com/subhoshree15/PC39D/wish/1090014198 https://padlet.com/subhoshree15/PC39D/wish/1090015433 color of CuO is black ]]> 2021-01-15 05:01:55 UTC https://padlet.com/subhoshree15/PC39D/wish/1090015433 https://padlet.com/subhoshree15/PC39D/wish/1090016989 Two colorless gas (NH₃) AND (HCl) is formed.

NH₄Cl - White sublimate

it is a reversible reaction;
bought about by heat ONLY and thus called THERMAL DISSOCIATION]]> 2021-01-15 05:03:32 UTC https://padlet.com/subhoshree15/PC39D/wish/1090016989 anushka1182 https://padlet.com/subhoshree15/PC39D/wish/1090017658 - Pb(NO3)2 is a white crystals
- brown gas is formed, pungent odour, which is acidic in nature.
- another colourless and odourless gas is formed. this gas when introduced to a glowing splinter catches fire, and is neutral to litmus test. 
- Decomposition and endothermic.
 ]]> 2021-01-15 05:04:12 UTC https://padlet.com/subhoshree15/PC39D/wish/1090017658 https://padlet.com/subhoshree15/PC39D/wish/1090018284 decomposition reaction]]> 2021-01-15 05:04:55 UTC https://padlet.com/subhoshree15/PC39D/wish/1090018284 https://padlet.com/subhoshree15/PC39D/wish/1090019908 burning splinter is introduced it start burning due to the presence of oxygen]]> 2021-01-15 05:06:39 UTC https://padlet.com/subhoshree15/PC39D/wish/1090019908 https://padlet.com/subhoshree15/PC39D/wish/1090022186 this is a decomposition reeaction
ab--> a+b]]> 2021-01-15 05:09:01 UTC https://padlet.com/subhoshree15/PC39D/wish/1090022186 anushka1182 https://padlet.com/subhoshree15/PC39D/wish/1090027987 (NH4)2Cr2O7 ---> N2 + 4H2O + Cr2
endothermic reaction,
thermal dissociation ]]> 2021-01-15 05:15:05 UTC https://padlet.com/subhoshree15/PC39D/wish/1090027987 https://padlet.com/subhoshree15/PC39D/wish/1090029624 Sublimation and Deposition of Iodine]]> 2021-01-15 05:16:51 UTC https://padlet.com/subhoshree15/PC39D/wish/1090029624 anushka1182 https://padlet.com/subhoshree15/PC39D/wish/1090030418 2021-01-15 05:17:52 UTC https://padlet.com/subhoshree15/PC39D/wish/1090030418 pratika1116 https://padlet.com/subhoshree15/PC39D/wish/1090040215 3. a. The gas is H2S (hydrogen sulphide). Production of hydrogen sulfide can be detected when ferrous sulfide, a black precipitate, is produced as a result of ferrous ammonium sulfate reacting with H2S gas
b. Hydrogen sulphide is typically evolved from iron sulphide, that is broken into small lumps and then treated with dilute hydrochloric acid or sulfuric acid]]> 2021-01-15 05:30:06 UTC https://padlet.com/subhoshree15/PC39D/wish/1090040215 anushka1182 https://padlet.com/subhoshree15/PC39D/wish/1090040554 What is the name of gas A?
Sulpher dioxide

Changes orange or yellow solution green. ]]> 2021-01-15 05:30:35 UTC https://padlet.com/subhoshree15/PC39D/wish/1090040554