Top 100 General Science Questions and Answers
What is the percentage of protein in soybean?
(A) 75%
(B) 50%
(C) 64%
(D) 42%
Correct Answer : D
Explanation :
Soybean seeds contain to 40% of crude protein and about 20% of fat, and soybean meal characterized higher content of crude protein- about 40-49%. Soybean meal standardized on 44 and 49% of protein there is on the feed market
Due to which behavior of the barometer which measures the atmospheric pressure, "thunderstorm is coming" is predicted?
(A) the barometer reading rises slowly
(B) the barometer reading slowly goes down
(C) barometer reading rises suddenly
(D) barometer reading rises suddenly
Correct Answer : D
Explanation :
A falling barometric pressure, detected by a barometer, signals an approaching thunderstorm. This drop indicates unstable atmospheric conditions, often preceding stormy weather. Meteorologists use barometric readings to predict thunderstorms, as the decrease in pressure signifies the likelihood of imminent weather disturbances and allows for timely weather warnings.
Which matching is not correct?
(A) Electromagnetism - Faraday
(B) Theory of Inheritance - Darwin
(C) Laws of Inertia - Newton
(D) None of these.
Correct Answer : B
A copper disc has a circular hole in the center when the copper disc is heated then the diameter of the hole is-
(A) will remain the same
(B) will decrease
(C) will increase
(D) will depend on other factors
Correct Answer : B
Explanation :
When a copper disc with a circular hole in the center is heated, the diameter of the hole will generally increase. This phenomenon occurs due to the expansion of the copper material as it is heated. When a material is heated, its particles gain energy and move more vigorously, leading to an increase in volume, and consequently, an increase in the diameter of the hole and the entire disc. The exact amount of expansion would depend on factors such as the temperature increase and the material properties of copper.
Metals are electropositive elements because-
(A) They themselves convert into cations by donating electrons to non-metals.
(B) They convert themselves into cations by taking electrons from metals.
(C) metal is reactive
(D) All of the above
Correct Answer : A
Explanation :
Metals are electropositive elements because they tend to lose electrons easily. In chemical reactions, metals readily give away their outer electrons to form positive ions, making them good conductors of electricity and heat. This electron loss leads to the formation of cations, which contribute to the electropositive nature of metals.
Being a highly reactive element, it is not found in free state in nature.
(A) iron
(B) sodium
(C) aluminum
(D) magnesium
Correct Answer : B
Explanation :
Sodium is a highly reactive element and is not found in its free state in nature due to its high reactivity. It readily reacts with other elements and compounds, forming various salts and minerals. Sodium is commonly found in the Earth's crust and in seawater as compounds, such as sodium chloride (table salt).
Which is used to make synthetic fibers?
(A) HCl
(B) Bleaching powder
(C) chlorine
(D) NaOH
Correct Answer : D
Examples of homologous organs are -
(A) our hands and dog's forelimbs
(B) our hands and dog's forelimbs
(C) auto trigger
(D) biocatalyst
Correct Answer : D
What is the characteristic of green color of pea pods in Mandal's experiment?
(A) effective
(B) ineffective
(C) incomplete dominant
(D) co-effective
Correct Answer : A
The connecting link between amphibians and reptiles is -
(A) Fish
(B) Prototheria
(C) Peripatus
(D) Seymouria
Correct Answer : D
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enhttps://www.examsbook.com/top-100-general-science-questions-and-answers/9109top-100-general-science-questions-and-answersAbout author
Rajesh Bhatia
A Writer, Teacher and GK Expert. I am an M.A. & M.Ed. in English Literature and Political Science. I am highly keen and passionate about reading Indian History. Also, I like to mentor students about how to prepare for a competitive examination. Share your concerns with me by comment box. Also, you can ask anything at linkedin.com/in/rajesh-bhatia-7395a015b/.
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