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UPSC Civil services Entrance exams General Studies test # General Science Oscillations Prepare / Learn

Q1. In the arrangement shown in the figure, if the block of mass m is displaced, the frequency is given by

A. n = (l/2

π

)

\sqrt{[(k_{1} - k_{2}) m]}

B. (l/2 {/tex}\pi

) t e x \sqrt{\frac{(k_{1} - k_{2})}{m}}

C. = (l/2

π

)

\sqrt{\frac{(k_{1} - k_{2})}{m}}

D. n = (l/2

π

)

\sqrt{[(k_{1} - k_{2}) m]}

Answer : Option A
Explaination / Solution:
No Explaination.

UPSC Civil services Entrance exams General Studies test # General Science Hydrogen Prepare / Learn

Q2. Hydrogen resembles halogens in many respects for which several factors are responsible. Of the following factors which one is most important in this respect?

A. Its tendency to lose an electron to form a cation.

B. Its tendency to gain a single electron in its valence shell to attain stable electronic configuration.

C. Its small size.

D. Its low negative electron gain enthalpy value.

Answer : Option B
Explaination / Solution:

Hydrogen, like the halogens, has one electron short of a complete outer shell and can form H- ions like Cl- and therefore forms ionic compounds with reactive metals – NaH similar in structure to NaCl. Hydrogen can gain one electron to form a duplet.Hydrogen also exists as a diatomic gas like fluorine and chlorine.

UPSC Civil services Entrance exams General Studies test # General Science Strategies for Enhancement in Food Production Prepare / Learn

Q3. “Blue revolution” is related to

A. Oil

B. Clean water

C. Milk

D. Fish

Answer : Option D
Explaination / Solution:

Blue revolution is related to fish production. This revolution is brought about by using aquaculture and pisciculture on the line of green revolution for wheat production.

UPSC Civil services Entrance exams General Studies test # General Science Wave Optics Prepare / Learn

Q4. Two slits are made one millimetre apart and the screen is placed one metre away. What is the fringe separation when bluegreen light of wavelength 500 nm is used?

A. 0.6 mm

B. 0.5 mm

C. 0.56 mm

D. 0.65 mm

Answer : Option B
Explaination / Solution:
No Explaination.

UPSC Civil services Entrance exams General Studies test # General Science Magnetism and Matter Prepare / Learn

Q5. A cube-shaped permanent magnet is made of a feromagnetic matrerial with a magnetization M of about The side length is 2 cm. Magnetic field due to the magnet at a point 10 cm from the magnet along its axis is

A. 0.002 T

B. 0.001 T

C. 0.003 T

D. 0.004 T

Answer : Option B
Explaination / Solution:
No Explaination.

UPSC Civil services Entrance exams General Studies test # General Science Biodiversity and Conservation Prepare / Learn

Q6. The newest addition to India’s national parks is:

A. Sundarbans National Park

B. Sultanpur National Park

C. Nagarhole National Park

D. Manas National Park

Answer : Option D
Explaination / Solution:

Located in the Himalayan foothills, it is contiguous with the Royal Manas National Park in Bhutan. The park is known for its rare and endangered endemic wildlife such as the Assam roofed turtle, hispid hare, golden langur and pygmy hog. It is established in 1990.

UPSC Civil services Entrance exams General Studies test # General Science Coordination Compounds Prepare / Learn

Q7. Which of the following compound would exhibit coordination isomerism?

\begin{array}{l} [N i {(N H_{3})}_{6}] {[B F_{4}]}_{2} \end{array}

[C r {(e n)}_{2}] N O_{2}

[C r (H_{2} O)] C l_{3}

[C r {(N H_{3})}_{6}] [C o {(C N)}_{6}]

Answer : Option D
Explaination / Solution:

Coordination isomerism is exhibited the the compounds in which cationic and anionic species is coordination complex.

UPSC Civil services Entrance exams General Studies test # General Science Chemical Coordination and Integration Prepare / Learn

Q8. To exert their effect on the target cell, water soluble hormones will need to bind with

A. cytosolic receptors.

B. cell membrane bound receptors.

C. plasma proteins.

D. nuclear receptors.

Answer : Option B
Explaination / Solution:

Hormone receptors present on the cell membrane of the target cells are called membrane-bound receptors and the receptors present inside the target cell are called intracellular receptors, mostly nuclear receptors (present in the nucleus). Binding of a hormone to its receptor leads to the formation of a hormone-receptor complex.

UPSC Civil services Entrance exams General Studies test # General Science Electrochemistry Prepare / Learn

Q9. Conductivity of 0.00241 M acetic acid is 7.896 ×

10^{- 5}

c m^{- 1}

. If

Δ_{m}^{o}

for acetic acid is 390.5 S

c m^{2} m o l^{- 1}

, what is its dissociation constant?

A. 1.95 ×

10^{- 5}

B. 2.05 ×

10^{- 5}

C. 1.75 ×

10^{- 5}

D. 1.85 ×

10^{- 5}

Answer : Option D
Explaination / Solution:

UPSC Civil services Entrance exams General Studies test # General Science Animal Kingdom Prepare / Learn

Q10. The phylum in which adults exhibit radial symmetry and larva exhibit bilateral symmetry is

A. Phylum Annelida

B. Phylum Echinodermata

C. Phylum Aschelminthes

D. Phylum Arthropoda

Answer : Option B
Explaination / Solution:

The animals of Phylum – Echinodermata have an endoskeleton of calcareous ossiclesand, hence, the name Echinodermata. All are marine with organ-system level of organisation. The adult echinoderms are radially symmetrical but larvaeare bilaterally symmetrical. They are triploblastic andcoelomate animals. Digestive system is complete with mouthon the lower (ventral) side and anus on the upper (dorsal)side.