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MTG PRACTICE PAPERS FOR NEET | JEE 2021
CHEMISTRY

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Arihant 40 Days NEET Chemistry @Neet_at_fingertips.pdf
56.1 MB
💙ARIHANT 40 DAYS NEET CHEMISTRY💯

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Commercial and chemical names of common chemicals:
Save time!

✺ Business Name
➭ IUPAC Name
➛ molecule formula

✺ chalk
➭ calcium carbonate
➛ CaCO₃

grape extract
➭ glucose
➛ C6H₁₂O6

✺ Alcohol
➭ ethyl
➛ C₂H5OH

✺ Caustic Potash
➭ potassium hydroxide
➛ KOH

4 Eating Soda
➭ sodium bicarbonate
➛ NaHCO₃

4 lime
➭ calcium oxide
➛ CaO

✺ Gypsum
➭ calcium sulfate
➛ CaSO₄.2H₂O

✺ tnt
Tri Nitro Tallinn
➛ C6H₂CH₃ (NO₂) ₃

✺ washing soda
➭ sodium carbonate
➛ Na₂CO₃

✺ blue blue
copper sulphate
➛ CuSO₄

✺ saline
➭ ammonium chloride
➛ NH₄Cl

✺ alum
➭ potassium aluminum sulfate
➛ K₂SO₄Al₂ (SO₄) ₃.24H₂O

Extinguished lime
➭ calcium hydroxide
➛ Ca (OH) ₂

Om Mand
4 starch
➛ C6H10O5

✺ Laughing Gas
➭ nitrous oxide
➛ N₂O

✺ red medicine
➭ potassium permanganate
➛ KMnO₄

✺ red vermilion
➭ lead paraxide
➛ Pb₃O₄

✺ dry ice
➭ solid carbon dioxide
➛ CO₂

Om Shora
➭ potassium nitrate
➛ KNO₃

✺ vinegar
Acetic acid dilute solution
➛ CH₃COOH

✺ icing
➭ borax
➛ Na₂B₄O7.10H₂O

✺ spirit
➭ Methyl Alcohol
➛ CH₃OH

✺ slate
➭ silica aluminum oxide
➛ Al₂O₃2SiO₂.2H₂O

✺ green case
➭ ferric sulfate
➛ Fe₂ (SO₄) ₃

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What is the difference between s-block and p-block elements?🤔

ᑕOᑎᑕƐᑭTS :
They are grouped as s-block or p-block according to the position of valence electrons in orbitals. The main difference between s and p block elements is that the valence electrons of the s-block elements are in the s-orbital whereas the valence electrons of the p-block elements are in the p-orbital.

What behaviour of the third period of p-block elements?🤔

ᑕOᑎᑕƐᑭTS :
The third period elements of p-groups with the electronic configuration 3s2 ,3pn have the vacant 3d orbitals lying between the 3p and the 4s levels of energy. Using these d-orbitals the third period elements can expand their co-valence above four.

How does the presence of d-orbitals affect the properties of heavier metals?🤔

ᑕOᑎᑕƐᑭTS :
The presence of d-orbitals influences the chemistry of the heavier elements in these ways:

1. The combined effect of size and availability of d orbitals considerably influences the ability of these elements to form ππ bonds.
2. The first member of a group differs from the heavier members in its ability to form pπ−pπpπ-pπ multiple bonds to itself.


Why heavier metals show reluctance for pπ-pπ bonding ?🤔

ᑕOᑎᑕƐᑭTS :
The heavier elements do form ππ bond but this involves d orbitals (dπ−pπ or dπ−dπ)(dπ-pπ or dπ-dπ) type bonding as the d orbitals are of higher energy than the p orbitals, they contribute less to the overall stability of molecules than does pπ−pπpπ-pπ bonding of the second row elements.

What are the properties of the Boron group of elements?🤔

ᑕOᑎᑕƐᑭTS :
1. Boron is a typical non-metal, aluminium is a metal but shows many chemical similarities to boron, and gallium, indium, thallium and nihonium are almost exclusively metallic in character.
2. Boron is a fairly rare element, mainly occurs as orthoboric acid, (H3BO3), borax, Na2B4O7·10H2O, and kernite, Na2B4O7·4H2O

3. The abundance of boron in earth crust is less than 0.0001% by mass.

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General Organic Chemistry Handwritten notes

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1000 MCQ for Organic Chemistry [1 MB]

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💡 TRICK TO LEARN OXALIS ACID OF PHOSPHORUS 💡

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https://www.instagram.com/reel/CoM3H_UJ7Yc/?igshid=YmMyMTA2M2Y=
🔬 Dive Into Electrochemistry: Exclusive Session

📌 Session Details:

Topic: Electrochemistry
For: Class 12th , EAMCET JEE NEET 2024
Subject:
Chemistry
📅 Date & Time: Today At 7pm


🔗 Access Link: [https://youtube.com/live/nLK5pUJJUTA]

🌟 Spread the Buzz! Enhance your understanding of Electrochemistry for exam excellence.

#Chemistry #EAMCETJEE2024 #ElectrochemistrySession #MustWatch ⚡️🧪