Neeraj Parmar sir Chemistry

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3 days ago | [YT] | 22

Neeraj Parmar sir Chemistry

🧪 Chemistry PYQ (Chemical Bonding)

Hybridization of central atom in SF₆ is:

A) sp³
B) sp³d
C) sp³d²
D) dsp²

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❓Kal ka Question: Which molecule is non-polar?

A) NH₃
B) H₂O
C) CO₂
D) SO₂
Is ka correct
(Answer aaj ki post me)

5 months ago | [YT] | 7

Neeraj Parmar sir Chemistry

✅ Correct Answer: CO₂

📘 Explanation:
• CO₂ is linear and symmetrical
• Dipole moments cancel each other

Hence, net dipole moment = 0

💡 Trick:
Linear + symmetric = Non-polar

🧠 Rule used: Molecular geometry concept

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5 months ago | [YT] | 4

Neeraj Parmar sir Chemistry

🧪 Chemistry PYQ (Chemical Bonding)

Which molecule is non-polar?

A) NH₃
B) H₂O
C) CO₂
D) SO₂

👇 सही option comment करें
📖 Answer + trick next post me
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@NeerajParmarSir

❓Kal ka Question: The correct order of bond angle is:

A) NH₃ > H₂O > CH₄
B) CH₄ > NH₃ > H₂O
C) H₂O > NH₃ > CH₄
D) NH₃ > CH₄ > H₂O
Is ka correct (Answer aaj ki post me)

5 months ago | [YT] | 6

Neeraj Parmar sir Chemistry

Kl ka Questions ❓
✅ Correct Answer: CH₄ > NH₃ > H₂O

📘 Explanation:
• CH₄: No lone pair → 109.5°
• NH₃: One lone pair → 107°
• H₂O: Two lone pairs → 104.5°

More lone pairs → More repulsion → Smaller angle

💡 Trick:
LP बढ़े → Angle घटे

🧠 Rule used: VSEPR theory

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5 months ago | [YT] | 8

Neeraj Parmar sir Chemistry

🧪 Chemistry PYQ (Chemical Bonding)

The correct order of bond angle is:

A) NH₃ > H₂O > CH₄
B) CH₄ > NH₃ > H₂O
C) H₂O > NH₃ > CH₄
D) NH₃ > CH₄ > H₂O

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@NeerajParmarSir

❓Kal ka Question: Which of the following has maximum ionic character?
A) NaCl
B) KCl
C) CsCl
D) LiCl
Is ka correct (Answer aaj ki post me)

5 months ago | [YT] | 8

Neeraj Parmar sir Chemistry

Kl ka Question ❓
✅ Correct Answer: CsCl

📘 Explanation:
Ionic character increases with:
• Larger cation size
• Greater electronegativity difference

Cs⁺ is largest → least polarizing power
Hence, maximum ionic character

💡 Trick:
Big cation = More ionic

🧠 Rule used: Fajan’s rule

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5 months ago | [YT] | 5

Neeraj Parmar sir Chemistry

🧪 Chemistry PYQ (Chemical Bonding)

Which of the following has maximum ionic character?

A) NaCl
B) KCl
C) CsCl
D) LiCl

👇 सही option comment करें
📖 Answer + trick next post me
🎯 NEET | JEE | Boards
@NeerajParmarSir

💡 For detailed explanation, watch my lecture here:👇
https://youtu.be/JAth8LfY7Zo?si=WG4Pg...

5 months ago (edited) | [YT] | 7

Neeraj Parmar sir Chemistry

Kal ka Question ❓
✅ Correct Answer: A) 2,2-Dimethylbutane
📖 Explanation (Simple):
Longest carbon chain = 4 carbons → Butane
Carbon no. 2 par do methyl (–CH₃) groups lage huye hain
Isliye name hua 2,2-Dimethylbutane
🧠 Rule used:
👉 Longest Chain Rule
👉 Lowest Locant Rule
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5 months ago | [YT] | 9

Neeraj Parmar sir Chemistry

The correct IUPAC name of CH₃–C(CH₃)₂–CH₂–CH₃ is:

A) 2,2-Dimethylbutane
B) 3,3-Dimethylbutane
C) 2-Methylpentane
D) 3-Methylpentane

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❓Kal ka Question: CH₃–CH(Br)–CH₃
Is ka correct IUPAC name kya hoga?
(Answer aaj ki post me)

5 months ago | [YT] | 9