NVS solved papers pgt chemistry part 4 nitrogen detection in sodium extract CBSE 11 12

QNo 141 NVS solved papers pgt chemistry
confirmation of nitrogen in given sample by treating with sodium extract and iron (II) sulphate later acidified with sulphuric acid..... prussian blue confirms presence of N by ferri ferro complex
NVS PGT CHEMISTRY 2016 QUESTION PAPER LINKS
1 nvs dec 2016 part 1
https://www.youtube.com/watch?v=6Onnj44tu_U&t=449s&list=PLaq7y6L8eN0UBzywRrg11nmLyOgtYmXTt&index=16
2. nvs part 2
https://www.youtube.com/watch?v=Q75aO2BGQ4s&t=186s&list=PLaq7y6L8eN0UBzywRrg11nmLyOgtYmXTt&index=14
3 nvs part 3
https://www.youtube.com/watch?v=49Ueb6tZecQ&t=224s&list=PLaq7y6L8eN0UBzywRrg11nmLyOgtYmXTt&index=13
basicity of amines part 1
https://www.youtube.com/watch?v=ypRQAq7JP10&t=59s&list=PLaq7y6L8eN0UBzywRrg11nmLyOgtYmXTt&index=15
basicity of amines part 2

4 . nvs part 4
https://www.youtube.com/watch?v=xKuPfIbJghE&t=180s&list=PLaq7y6L8eN0UBzywRrg11nmLyOgtYmXTt&index=12
5 nvs part 5
https://www.youtube.com/watch?v=EV8slwgVTdE&t=0s&list=PLaq7y6L8eN0UBzywRrg11nmLyOgtYmXTt&index=11

6 nvs part 6
https://www.youtube.com/watch?v=boxXAybpj4M&t=128s&list=PLaq7y6L8eN0UBzywRrg11nmLyOgtYmXTt&index=10
7 nvs part 7
https://www.youtube.com/watch?v=HXb-p8Edtg8&t=166s&list=PLaq7y6L8eN0UBzywRrg11nmLyOgtYmXTt&index=9
8 nvs part 8
https://www.youtube.com/watch?v=z1bPG1ufeeQ&t=85s&list=PLaq7y6L8eN0UBzywRrg11nmLyOgtYmXTt&index=8
9 nvs part 9
https://www.youtube.com/watch?v=ig9LcDwrNM8&t=452s&list=PLaq7y6L8eN0UBzywRrg11nmLyOgtYmXTt&index=7
10 nvs part 10
https://www.youtube.com/watch?v=H0_wjbgk8FU&t=784s&list=PLaq7y6L8eN0UBzywRrg11nmLyOgtYmXTt&index=6
11 nvs part 11
https://www.youtube.com/watch?v=cfmtYgp0C9k&t=889s&list=PLaq7y6L8eN0UBzywRrg11nmLyOgtYmXTt&index=5
12 nvs part 12
https://www.youtube.com/watch?v=An-Agiy0DVs&t=57s&list=PLaq7y6L8eN0UBzywRrg11nmLyOgtYmXTt&index=4
13 nvs part 13 https://www.youtube.com/watch?v=VcSNACH3SUM&t=121s&list=PLaq7y6L8eN0UBzywRrg11nmLyOgtYmXTt&index=3

Видео NVS solved papers pgt chemistry part 4 nitrogen detection in sodium extract CBSE 11 12 канала sakshigopalachemistryclassess by neeta jain