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Don't lose your hope👍🏻

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### IIT JEE Sample Questions

#### Physics:
1. A block of mass 5 kg is placed on a frictionless surface. A force of 20 N is applied horizontally. What will be the acceleration of the block?
(a) 2 m/s²
(b) 4 m/s²
(c) 5 m/s²
(d) 6 m/s²

Answer: (b) 4 m/s²
Explanation: \( F = ma \) ⇒ \( 20 = 5a \) ⇒ \( a = 4 \, \text{m/s}^2 \).

#### Chemistry:
2. Which of the following compounds does not exhibit hydrogen bonding?
(a) H₂O
(b) NH₃
(c) CH₃OH
(d) CH₄

Answer: (d) CH₄
Explanation: CH₄ has no highly electronegative atom to form hydrogen bonds.

#### Mathematics:
3. The derivative of \( f(x) = x^2 e^x \) is:
(a) \( e^x (x^2 + 2x) \)
(b) \( e^x (x^2 - x) \)
(c) \( e^x (x^2 + x) \)
(d) \( e^x (x^2 - 2x) \)

Answer: (a) \( e^x (x^2 + 2x) \)
Explanation: Apply the product rule: \( f'(x) = (x^2)' e^x + x^2 (e^x)' \).

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### **NEET Sample Questions*

#### Chemistry:
1. The IUPAC name of CH₃-CH(OH)-COOH is:
(a) Lactic acid
(b) 2-Hydroxypropanoic acid
(c) Propanoic acid
(d) Hydroxyethanoic acid

Answer: (b) 2-Hydroxypropanoic acid
Explanation: It contains a hydroxyl group (-OH) and a carboxylic acid group (-COOH).

#### Biology:
3. What is the functional unit of a kidney?
(a) Neuron
(b) Alveoli
(c) Nephron
(d) Glomerulus

Answer: (c) Nephron
Explanation: The nephron is responsible for the filtration and reabsorption in the kidney.

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The process of oogenesis....

Ovary- contains 400,000 oocytes; release about
500 in a lifetime
• Ovary- under influence of FSH. The follicles
mature every 28 days
• Primary follicle produces estrogens
• And primary oocyte completes its 1st division
produces 2ndary oocyte and polar body🔥🔥🔥🔥🔥🔥🔥

Class 12 Physics Derivations Shobhit Nirwan.pdf

Haloalkanes and Haloarenes Shobhit Nirwan.pdf

Alcohols, Phenols, and Ethers Shobhit Nirwan.pdf

Aldehydes, Ketones, and Carboxylic Acids Shobhit Nirwan.pdf

Amines Shobhit Nirwan.pdf

Electrostatic Potential and Capacitance (1).pdf

Current Electricity.pdf

Moving Charge Magnetism.pdf

Magnetism & Matter.pdf

EMI.pdf

Alternating Current.pdf

Electromagnetic Waves.pdf