t.me/livejee

2021-04-25 17:03:21 Win FREE IPL Merchandise when you ask Doubts?

Become the Man of the Series by Asking Highest Doubts in April

And Become Emerging Player of the Series by Asking Highest Doubts in a Day

Ask Doubts Now!

CODE: GOA10

Class 9: https://unacademy.onelink.me/k7y7/76aa7c37
Class 10: https://unacademy.onelink.me/k7y7/74ad1076
Class 11: https://unacademy.onelink.me/k7y7/50e229a3
Class 12: https://unacademy.onelink.me/k7y7/eebd748f

#AskUnacademy #doubts #ipl ओपन / कमेंट

2021-04-25 14:08:47 You don't want to miss this chance to win FREE IPL Merchandise?

And it is so easy?

Just Ask The Highest Number of Doubts


CODE:GOA10

Class 9: https://unacademy.onelink.me/k7y7/76aa7c37
Class 10: https://unacademy.onelink.me/k7y7/74ad1076
Class 11: https://unacademy.onelink.me/k7y7/50e229a3
Class 12: https://unacademy.onelink.me/k7y7/eebd748f

#AskUnacademy #doubts #ipl
#KeepAsking ओपन / कमेंट

2021-04-25 08:26:16 LISTEN LISTEN LISTEN

Due to some issue or reason...........we have to make our main channel private soon so plz join fast...... it contains very premium and very important stuff so plzz join fast


https://t.me/joinchat/BMebOOD8dsVmMDE1
https://t.me/joinchat/BMebOOD8dsVmMDE1
https://t.me/joinchat/BMebOOD8dsVmMDE1
https://t.me/joinchat/BMebOOD8dsVmMDE1
https://t.me/joinchat/BMebOOD8dsVmMDE1

NOTE :- AFTER 1 HOUR CHANNEL WILL BE MADE PRIVATE ओपन / कमेंट

2021-04-24 20:05:29 ओपन / कमेंट

2021-04-24 19:50:39 You don't want to miss this chance to win FREE IPL Merchandise?

And it is so easy?

Just Ask The Highest Number of Doubts


CODE:GOA10

Class 9: https://unacademy.onelink.me/k7y7/76aa7c37
Class 10: https://unacademy.onelink.me/k7y7/74ad1076
Class 11: https://unacademy.onelink.me/k7y7/50e229a3
Class 12: https://unacademy.onelink.me/k7y7/eebd748f

#AskUnacademy #doubts #ipl
#KeepAsking ओपन / कमेंट

2021-04-24 12:12:41 Buy Unacademy Subscription for 3 Years

Get 5 Months Free!

What are you waiting for?

Talk To Unacademy

CODE:GOA10

Class 6 - https://unacademy.onelink.me/k7y7/2f42b2d8
Class 7 - https://unacademy.onelink.me/k7y7/34c427f6
Class 8 - https://unacademy.onelink.me/k7y7/2c84e0d3
Class 9 - https://unacademy.onelink.me/k7y7/a5ac819a
Class 10 - https://unacademy.onelink.me/k7y7/2e71ba8e
Class 11 -
https://unacademy.onelink.me/k7y7/ff380b1b
Class 12 -
https://unacademy.onelink.me/k7y7/88a215f0
Creative Corner -
https://unacademy.onelink.me/k7y7/6660a22
Young Coders -
https://unacademy.onelink.me/k7y7/3e6adbfd

#unacademy ओपन / कमेंट

2021-04-22 19:03:54 APPLICATION OF INTEGRALS

HANDWRITTEN NOTES

🅂🄷🄰🅁🄴 🅆🄸🅃🄷 🅈🄾🅄🅁 🄵🅁🄸🄴🄽🄳🅂
▭▬▭▬▭▬▭▬▭▬▭▬▭▬
𝐅𝐎𝐑 𝐌𝐎𝐑𝐄 𝐂𝐎𝐍𝐓𝐄𝐍𝐓
𝐉𝐎𝐈𝐍

​╔════════════════╗
▒☞@livedailychatofficial
╚════════════════╝ ओपन / कमेंट

2021-04-22 17:07:16 Thinking of the best way to utilize your time?

Try FREE Coding Classes by India's Top Educators

Sign up for Unacademy's Young Coders Program today

CODE:GOA10

https://unacademy.onelink.me/k7y7/ae60de91 ओपन / कमेंट

2021-04-21 19:56:11 Notes on s-Block Elements:

Covalent Character:.

Small cation and large anion favors covalency.

Order: LiCl > NaCl > KCl > RbCl > CsCl & . LiI > LiBr > LiCl > LiF

Greater the charge on the cation greater is its polarizing power and hence larger is the covalent character: Na+CI- < Mg+2CI2 < AI+3 CI3

Greater the charge on the anion, more easily it gets polarized thereby imparting more covalent character to the compound formed eg covalent character increase in the order. NaCI < Na2SO4 < Na3PO4

c) Lattice Energies: Amount of energy required to separate one mole of solid ionic compound into its gaseous ions.

Greater the lattice energy, higher is the melting point of the alkali metals halide and lower is its solubility in water

d) Hydration Energy: Amount of energy released when one mole of gaseous ions combine with water to form hydrated ions.

M+ (g) + aq → M+ (aq) + hydration energy

X- (g) + aq → X- (aq) + hydration energy

Higher the hydration energy of the ions greater is the solubility of the compound in water.

The solubility of the most of alkali metal halides except those of fluorides decreases on descending the group since the decrease in hydration energy is more than the corresponding decrease in the lattice energy.

Due to high hydration energy of Li+ ion, Lithium halides are soluble in water except LiF which is sparingly soluble due to its high lattice energy.

For the same alkali metal the melting point decreases in the order

fluoride > chloride > bromide > iodide

For the same halide ion, the melting point of lithium halides are lower than those of the corresponding sodium halides and thereafter they decrease as we move down the group from Na to Cs.

The low melting point of LiCl (887 K) as compared to NaCl is probably because LiCl is covalent in nature and NaCl is ionic.

Anomalous Behavior of Lithium and diagonal relationship with Magnesium:

Li has anomalous properties due to

Very small size

High polarizing Power

Lithium show diagonal relationship with magnesium because both elements have almost same polarizing power.

The melting point and boiling point of lithium are comparatively high.

Lithium is much harder than the other alkali metals. Magnesium is also hard metal.

Lithium reacts with oxygen least readily to form normal oxide whereas other alkali metals form peroxides and superoxides.

LiOH like Mg (OH)2 is weak base. Hydroxides of other alkali metals are strong bases.

Due to their appreciable covalent nature, the halides and alkyls of lithum and magnesium are soluble in organic solvents.

Unlike elements of group 1 but like magnesium. Lithium forms nitride with nitrogen.6Li + N2 → 2Li3N

LiCl is deliquescent and crystallizes as a hydrate, LiCI2H2O. Other alkali metals do not form hydrates. also forms hydrate, MgCI2.8H2O .

Unlike other alkali metals lithium reacts directly with carbon to form an ionic carbide. Magnesium also forms a similar carbide.
The carbonates, hydroxides and nitrates of lithium as well as magnesium decompose on heating.
Li2CO3 → Li2O + CO2
MgCO3 → MgO + CO2
2LiOH → Li2O + H2O
Mg (OH)2 → MgO + H2O
4LiNO3 → 2Li2O + 4NO2 + O2
2Mg ( NO3)2 → 2Mg + 4NO2 +O2
The corresponding salts of other alkali metals are stable towards heat.
Lithium nitrate, on heating, decomposes to give lithium oxide, Li2O whereas other alkali metals nitrate decomposes to give the corresponding nitrite.
4LiNO3 → 2Li2O + 4NO2 + O2
2NaNO3 → 2NaNO2 + O2
2KNO3 → 2KNO2 + O2
Li2CO3, LiOH, LiF and Li3PO4 are the only alkali metal salts which are insoluble in water. The corresponding magnesium compounds are also insoluble in water.
Hydrogen carbonates of both lithium and magnesium can not be isolated in solid state. Hydrogen carbonates of other alkali metals can be isolated in solid state.
Sodium Hydroxide (NaOH):
NaOH is stable towards heat but is reduced to metal when heated with carbon

2NaOH + 2C → 2Na +2CO + H2
FeCl3 + 3NaOH →Fe(OH)3 + 3NaCl
NH4Cl + NaOH → NaCl + NH3 (pungent smell) + H2O ओपन / कमेंट

2021-04-21 17:29:57 Physics pro tip -
Guys Improve your reading skills. It is one of the things most of us neglect these days. Let me tell how it will help you in saving time. You see many of us don't understand the question in 1 time and read it 2-3 times and say reading 1 time takes approx 10 seconds. then you take 30 seconds just reading it many times. Now getting back to reading. If you guys read any kind of text whether subject related or not for atleast 10-15 minutes everyday your reading skills will increase.Try to read difficult and newer type of texts.
what will happen?
- You will be able to read faster than ever.
-You will be able to understand the abstract of the questions pretty easily in less time.
now how will it help you ?
say you take 10 seconds to read an average sized / big sized question
and say from 45 questions you read 20 questions 3 times.
now how much extra time you took ?
20x (2x10) = 400 seconds = 6.67 minutes and you all know importance of each minute so here if you have good reading habits you can save your 4-5 minutes atleast.
this can help you solve more questions in less time , hope it will help you , try reading texts.

All the best ओपन / कमेंट