NEET / AIIMS · Practice Sheet 45

1. 1.

   Chemistry

   How many moles are present in 132 g of carbon dioxide (CO₂) (molar mass = 44 g/mol)?

   Formula:Number of Moles

   $n = \dfrac{m}{M}$

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2. 2.

   Chemistry

   80 mL of a 1 M solution is diluted to 338 mL. Find the new concentration.

   Formula:Dilution

   $M_1V_1 = M_2V_2$

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3. 3.

   Biology

   Calculate the BMI of a person weighing 70 kg with height 1.54 m.

   Formula:Body Mass Index

   $BMI = \dfrac{m}{h^{2}}$

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4. 4.

   Biology

   In a monohybrid cross (Aa × Aa) producing 192 F₂ offspring, how many are expected to show the dominant and the recessive phenotype (3:1 ratio)?

   Formula:Monohybrid Cross (3:1)

   $\text{Dominant}:\text{Recessive} = 3:1$

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5. 5.

   Biology

   Under a microscope, an object of actual size 5 mm appears 95 mm. Find the magnification.

   Formula:Microscope Magnification

   $M = \dfrac{\text{image size}}{\text{actual size}}$

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6. 6.

   Physics

   If 2,708 J of work is done in 9 s, find the power.

   Formula:Power

   $P = \dfrac{W}{t}$

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7. 7.

   Physics

   Find the electrical power when 10 V drives a current of 4 A.

   Formula:Electrical Power

   $P = VI$

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8. 8.

   Quantitative Aptitude

   Two fair dice are rolled. What is the probability that the sum of the numbers is 7?

   Formula:Probability (two dice)

   $P = \dfrac{\text{favourable}}{\text{total}}$

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9. 9.

   Biology

   Under a microscope, an object of actual size 0.8 mm appears 12.8 mm. Find the magnification.

   Formula:Microscope Magnification

   $M = \dfrac{\text{image size}}{\text{actual size}}$

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10. 10.

    Physics

    If 1,264 J of work is done in 17 s, find the power.

    Formula:Power

    $P = \dfrac{W}{t}$

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11. 11.

    Physics

    Find the force required to accelerate a 6 kg mass at 20 m/s².

    Formula:Newton's Second Law (F = ma)

    $F = ma$

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12. 12.

    Physics

    Find the electrical power when 204 V drives a current of 19 A.

    Formula:Electrical Power

    $P = VI$

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13. 13.

    Physics

    Find the force required to accelerate a 9 kg mass at 1 m/s².

    Formula:Newton's Second Law (F = ma)

    $F = ma$

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14. 14.

    Chemistry

    79 mL of a 10 M solution is diluted to 171 mL. Find the new concentration.

    Formula:Dilution

    $M_1V_1 = M_2V_2$

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15. 15.

    Chemistry

    A solution is made by dissolving 12 g of solute in 158 g of solvent. Find the mass percentage of the solute.

    Formula:Mass Percentage

    $\%\,\text{mass} = \dfrac{\text{solute}}{\text{solution}}\times 100$

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16. 16.

    Physics

    Find the kinetic energy of a 14 kg object moving at 4 m/s.

    Formula:Kinetic Energy

    $KE = \tfrac{1}{2}mv^{2}$

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17. 17.

    Biology

    In a monohybrid cross (Aa × Aa) producing 164 F₂ offspring, how many are expected to show the dominant and the recessive phenotype (3:1 ratio)?

    Formula:Monohybrid Cross (3:1)

    $\text{Dominant}:\text{Recessive} = 3:1$

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18. 18.

    Physics

    Find the density of an object with mass 117 g and volume 36 cm³.

    Formula:Density

    $\rho = \dfrac{m}{V}$

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19. 19.

    Biology

    In a monohybrid cross (Aa × Aa) producing 48 F₂ offspring, how many are expected to show the dominant and the recessive phenotype (3:1 ratio)?

    Formula:Monohybrid Cross (3:1)

    $\text{Dominant}:\text{Recessive} = 3:1$

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20. 20.

    Physics

    Find the voltage across a 18 Ω resistor carrying a current of 4 A.

    Formula:Ohm's Law

    $V = IR$

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