NSMQ2025 Preliminary Stage Sample Past Questions and Answers: SET 04.

Preamble: Find the indefinite integral of, find the indefinite integral of

1. X² – 1/x

Ans: x³/3 + 1/x + C

2. 4x³ + 2/x³.

Ans: x⁴ – 1/x² + C

3. 2x – 3/x⁴.

Ans: x² + x^-3 + C

Preamble: Find the energy in an inductor of the given inductance L when it carries the given current I.

4. L = 15 mH and I = 4.0 A

Ans: 1.2 x 10^-1 J.

5. L = 24 mH and I = 1.5 A

Ans: 2.7 x 10^-2 J

6. L = 16 mH and I = 2.5 A

Ans: 0.050 J

Preamble: Determine whether the solution formed by mixing equal amounts of the given compounds is acidic, basic, or neutral

7. Hydrofluoric acid and potassium hydroxide.

Ans: Basic

8. Ethanoic acid and strontium hydroxide.

Ans: Basic

9. Nitric acid and barium hydroxide

Ans: Neutral

Preamble: Name the structure responsible for gaseous exchange in the given organism.

Ans: the tube feet.

11. Insects

Ans: the tracheal system

Ans: Book lungs

Preamble: Find the image distance for the given object distance from a concave mirror of focal length 25.0 cm

13. Object distance is 28.0 cm

Ans: 233 cm

14. Object distance is 36.0cm

Ans: 81.8 cm

15. Object distance is 42.0 cm

Ans: 56.0 cm

Preamble: A hypothetical element, R, exists as R₁ and R₂. Find the isotopic mass of R₂ given.

16. R₁ has 25.0 percent abundance and an isotopic mass of 10.0, and the average atomic mass of R is 19.0.

Ans: 22.0

17. R₁ has 20.0 percent abundance and an isotopic mass of 24.0, and the average atomic mass of R is 26.0.

Ans: 26.5

18. R₁ has 40.0 percent abundance and an isotopic mass of 35.0, and the average atomic mass of R is 41.0.

Ans: 45.0

Preamble: Give the tRNA anticodon that will bind to the given mRNA codon.

19. GCU

Ans: CGA

20. ACA

Ans: UGU

21. AUG

Ans: UAC

22. Name the two main chemical elements that are primarily responsible for eutrophication in water.

Ans: Phosphorus and nitrogen.

23. Name the plasma protein that is necessary for blood clotting.

Ans: Fibrinogen

24. What name is given to the portion of the cytoplasm that does not contain cell organelles?

Ans: Cytosol

25. Convert 3 feet 4 inches into meters

Ans: 1.016 m

TRUE/FALSE.

Preamble: A climax community has

1. Low species diversity

Ans: false

2. A high rate of succession.

Ans: False

3. High biodiversity.

Ans: True

4. High elemental density increases linearly with increasing atomic number.

Ans: False

5. The noble gases are among the densest elements on the periodic table.

Ans: False

6. The density of an element depends on its atomic mass and atomic packing.

Ans: True

Preamble: An object moves with constant acceleration along a straight line an object moves with constant

7. The direction of the displacement of the object is the same at any time interval.

Ans: False

8. The direction of the displacement of the object is the same in equal time intervals.

Ans: False

9. The direction of the velocity of the object is constant.

Ans: False

Preamble: Transformation in the XY plane is a linear transformation

10. A translation.

Ans: False

11. A reflection in the x-axis.

Ans: True

12. A reflection in the origin.

Ans: True

13. The pH at which the rate of an enzyme-controlled reaction is maximum, known as the Optimum pH, is the same for all enzymes.

Ans: False

14. The rate of an enzyme-catalyzed reaction Increases with an increase in temperature until a peak is attained.

Ans: True

15. When the temperature increases beyond the optimum temperature, the rate of an enzyme-catalyzed reaction also increases.

Ans: False

16. Magnesium reacts with hydrochloric acid to produce hydrogen gas.

Ans: True

17. The reaction between zinc and hydrochloric acid is exothermic.

Ans: True

18. Copper reacts readily with dilute hydrochloric acid to produce hydrogen gas.

Ans: False

Preamble: The density of water near 4 degrees Celsius

19. Is independent of temperature.

Ans: False

20. Decreases as the temperature decreases.

Ans: True

21. Decreases as temperature increases.

Ans: True

Source: Galmeek.com

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