Shubham Jha - Class 10
5.64K subscribers
1.16K photos
95 videos
91 files
2.65K links
7 year experience in Training 9th & 10th grade students with special creative techniques.
A memory coach & a passionate educator by choice.
👉 Upcoming FREE class - https://unacademy.com/@shubham0011/courses?&type=special&courses=upcoming
Code - SJSUPER
Download Telegram
Write the electronic configuration of NA
Anonymous Quiz
15%
2,8,4
72%
2,8,1
7%
2,8,3
6%
2,8,2
👍2
Which of the following oxide of iron would be obtained or prolonged reaction of iron with steam
Anonymous Quiz
24%
Feo
49%
Fe2O3
15%
Fe3O4
12%
Fe2O
👍1👎1
Which metal can be displaced by copper from its salt solution
Anonymous Quiz
25%
Silver
51%
Zinc
20%
Iron
4%
Iron
👍3
👍2
The soln of which of the following compund s will not conduct electricty
Anonymous Quiz
32%
Ccl4
33%
Nacl
18%
Cacl2
17%
Kbr
❤‍🔥1
Silver article become black on prolonged exposued. To air this is due to the formation of
Anonymous Quiz
37%
Ag3N
42%
Ag3O
16%
Ag2s
5%
Ag3n
🙏1
🥰1
Which of the metal is more reactive
Anonymous Quiz
36%
K
40%
Na
11%
Ca
13%
Mg
Which one of the following would be displaced from the soln of its salt by other three metal
Anonymous Quiz
31%
Mg
34%
Ag
24%
Zn
11%
Cu
👍1
Electrical wire have. A coating of an insulating material the material generally used is
Anonymous Quiz
18%
Sulphur
32%
Graphite
35%
Pvc
15%
All can be used
👍1
Metal such as sodium and potassium are kept immeresed in
Anonymous Quiz
49%
Kerosene oil
20%
Water
22%
Carbon di sulphide
9%
Alchol
👍1🔥1
Which of the following oxides will not react with dilute sulphuric acid
Anonymous Quiz
39%
Co2
28%
Mgo
19%
CUO
14%
NA2O
👍2