Govt Exams
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Subjects in Railway RRB / NTPC
Q.731
Easy
General Science
Physics
Newton first law also called?
Correct Answer:
C. Law of inertia
EXPLANATION
First law = Law of Inertia.
Q.732
Easy
General Science
Human Body
Organ that pumps blood?
Correct Answer:
C. Heart
EXPLANATION
Heart pumps blood.
Q.733
Easy
General Science
Chemistry
Chemical formula of water?
Correct Answer:
B. H2O
EXPLANATION
Water = H₂O.
Q.734
Easy
General Science
Space & Astronomy
Which celestial phenomenon occurs when the Moon passes between the Earth and the Sun, blocking the Sun's light and casting a shadow on Earth?
Correct Answer:
A. Solar Eclipse
EXPLANATION
A solar eclipse happens when the Moon's orbit places it directly between Earth and the Sun, creating a shadow on Earth's surface.
This is distinct from a lunar eclipse where Earth blocks sunlight from reaching the Moon, and from penumbral or annular eclipses which are specific types with different characteristics.
Q.735
Easy
General Science
Chemistry
Which of the following elements has the highest electronegativity value on the Pauling scale?
Correct Answer:
A. Fluorine
EXPLANATION
Fluorine has the highest electronegativity value of 3.98 on the Pauling scale, making it the most electronegative element.
This is because it has the smallest atomic radius and the highest effective nuclear charge among all elements, causing it to attract electrons most strongly in a chemical bond.