KUSH ACADEMY(Team Physics Study)

You should have these points in mind!

✅ "Names and Formulas of Chemical Elements!"

🔺Common salt = NaCl
🔺Baking soda = NaHCO₃
🔺Washing soda = Na₂CO₃ 10H₂O
🔺Caustic Soda = NaOH
🔺Suhaga = Na₂B₄O₇ 10H₂O
🔺Alum = K₂SO₄ Al₂(SO₄)₃ 24H₂O
🔺Red medicine = KMnO₄
🔺Caustic Potash = KOH
🔺Saltpeter = KNO₃
🔺Bleaching powder = Ca(OCl)Cl
🔺lime water = Ca(OH)₂
🔺Gypsum = CaSO₄ 2H₂O
🔺Plaster of Paris = CaSO₄ ½H₂O
🔺Chalk = CaCO₃
🔺Limestone = CaCO₃
🔺Marble = CaCO₃
🔺Nausadar = NH4Cl
🔺Laughing gas = N₂O
🔺Litharge = PbO
🔺Galena = PbS
🔺Red vermilion = Pb₃O₄
🔺White lead = 2PbCO₃ Pb(OH)₂
🔺Salt acid = HCl
🔺Shore's acid = HNO₃
🔺Amalraj = HNO₃ + HCl (1 : 3)
🔺Dry ice = CO₂
🔺Green Case = FeSO₄ 7H₂O
🔺Horn Silver = AgCl
🔺Heavy water = D₂O
🔺Producer gas = CO + N₂
🔺Marsh gas = CH₄
🔺Vinegar = CH₃COOH
🔺Gemaxine = C₆H₆Cl₆
🔺Blue Case = CuSO₄ 5H₂O
🔺alcohol = C₂H₅OH
🔺Mand = C₆H₁₀O₅
🔺Grape juice = C₆H₁₂O₆
🔺sugar = C₁₂H₂₂O₁₁
🔺Urea = NH₂CONH₂
🔺Benzene = C₆H₆

✅Chemistry
⏩ About atomic theory, along with their answers:

1. Who proposed the first atomic theory based on philosophical reasoning?

a) Albert Einstein
b) John Dalton
c) Ernest Rutherford
d) Niels Bohr
Answer: b) John Dalton


2. According to John Dalton's atomic theory, atoms are:

a) Indivisible and indestructible particles
b) Made up of protons, neutrons, and electrons
c) Composed of positively charged protons and negatively charged electrons
d) Always in motion around the nucleus
Answer: a) Indivisible and indestructible particles


3. Who discovered the electron and proposed the plum pudding model of the atom?

a) Ernest Rutherford
b) J.J. Thomson
c) Niels Bohr
d) Marie Curie
Answer: b) J.J. Thomson


4. Which scientist's experiment led to the discovery of the atomic nucleus?

a) J.J. Thomson
b) Niels Bohr
c) Ernest Rutherford
d) Max Planck
Answer: c) Ernest Rutherford


5. According to Bohr's model of the atom, electrons:

a) Move in random orbits around the nucleus
b) Move in circular orbits at fixed energy levels
c) Move in continuous orbits with varying energy
d) Move at the speed of light around the nucleus
Answer: b) Move in circular orbits at fixed energy levels

Biology   EUEE
Questions and answers with explanation

1. What is the primary neurotransmitter affected by most drugs of abuse?
   A. Serotonin
   B. Dopamine
   C. Acetylcholine
   D. GABA (gamma-aminobutyric acid)

   Answer: B. Dopamine

   Explanation: Dopamine is the primary neurotransmitter affected by ...See more

2. Which part of the brain is commonly associated with addiction and reward pathways?
   A. Cerebellum
   B. Hippocampus
   C. Amygdala
   D. Nucleus accumbens

   Answer: D. Nucleus accumbens
Explanation: The nucleus accumbens is a ...See more

3. What is the term for the phenomenon where higher doses of a drug are needed to achieve the same effect over time?
   A. Tolerance
   B. Withdrawal
   C. Dependence
   D. Overdose

   Answer: A. Tolerance
Explanation: Tolerance refers to the body's ...See more

4. Which class of drugs depresses the central nervous system and slows down brain activity?
   A. Stimulants
   B. Depressants
   C. Hallucinogens
   D. Opioids

   Answer: B. Depressants
   Explanation: Depressant drugs slow down brain activity and ...See more

5. What is the term for the physiological and psychological symptoms experienced when drug use is discontinued?
   A. Tolerance
   B. Withdrawal
   C. Dependence
   D. Addiction

   Answer: B. Withdrawal
   Explanation: Withdrawal refers to the symptoms that occur ...See more

6. Which neurotransmitter is commonly associated with pleasure, reward, and addiction in the context of drug abuse?
   A. Serotonin
   B. Dopamine
   C. Acetylcholine
   D. GABA (gamma-aminobutyric acid)

   Answer: B. Dopamine
   Explanation: Dopamine is a neurotransmitter involved in ...See more

7. What is the term for the compulsive, uncontrollable use of a substance despite negative consequences?
   A. Tolerance
   B. Withdrawal
   C. Dependence
   D. Addiction

   Answer: D. Addiction
   Explanation: Addiction is characterized by ...See more

8. Which class of drugs alters perception, mood, and cognitive processes, often leading to hallucinations?
   A. Stimulants
   B. Depressants
   C. Hallucinogens
   D. Opioids

   Answer: C. Hallucinogens
   Explanation: Hallucinogens are drugs that distort ...See more

9. What is the term for the intense craving for a drug that can occur even after long periods of abstinence?
   A. Tolerance
   B. Withdrawal
   C. Relapse
   D. Craving

   Answer: D. Craving
   Explanation: Craving refers to the strong desire or ...See more

10. Which part of the brain is responsible for decision-making, impulse control, and judgment, often impaired by drug abuse?
    A. Cerebellum
    B. Prefrontal cortex
    C. Brainstem
    D. Thalamus

    Answer: B. Prefrontal cortex
    Explanation: The prefrontal cortex is involved in ...

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